<div class="xblock xblock-public_view xblock-public_view-vertical" data-has-score="False" data-block-type="vertical" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@vertical+block@79d4d4e1ee7e48b2a7e53569670432ee" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <h2 class="hd hd-2 unit-title">Lecture 1.2</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455"> <div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-has-score="False" data-block-type="video" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h3 class="hd hd-2">Lecture 1.2</h3> <div id="video_f63d1ddcb19e4a269b451034933d3455" class="video closed" data-metadata='{&#34;savedVideoPosition&#34;: 0.0, &#34;transcriptLanguage&#34;: &#34;en&#34;, &#34;ytTestTimeout&#34;: 1500, &#34;lmsRootURL&#34;: &#34;https://openlearninglibrary.mit.edu&#34;, &#34;completionPercentage&#34;: 0.95, &#34;transcriptAvailableTranslationsUrl&#34;: &#34;/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455/handler/transcript/available_translations&#34;, &#34;saveStateUrl&#34;: &#34;/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455/handler/xmodule_handler/save_user_state&#34;, &#34;prioritizeHls&#34;: false, &#34;autoplay&#34;: false, &#34;ytApiUrl&#34;: &#34;https://www.youtube.com/iframe_api&#34;, &#34;showCaptions&#34;: &#34;true&#34;, &#34;start&#34;: 0.0, &#34;autoAdvance&#34;: false, &#34;ytMetadataEndpoint&#34;: &#34;&#34;, &#34;publishCompletionUrl&#34;: &#34;/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455/handler/publish_completion&#34;, &#34;poster&#34;: null, &#34;autohideHtml5&#34;: false, &#34;sources&#34;: [&#34;https://archive.org/download/mitoll-pre-7-01-su-20/MITOLL_Pre-7_01SU20_lec1-2_1080p.mp4&#34;], &#34;recordedYoutubeIsAvailable&#34;: true, &#34;completionEnabled&#34;: false, &#34;streams&#34;: &#34;0.75:yDu_xhkKwnQ,1.00:yDu_xhkKwnQ,1.25:yDu_xhkKwnQ,1.50:yDu_xhkKwnQ&#34;, &#34;saveStateEnabled&#34;: false, &#34;end&#34;: 0.0, &#34;transcriptLanguages&#34;: {&#34;en&#34;: &#34;English&#34;}, &#34;generalSpeed&#34;: 1.0, &#34;captionDataDir&#34;: null, &#34;duration&#34;: 0.0, &#34;speed&#34;: null, &#34;transcriptTranslationUrl&#34;: &#34;/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@video+block@f63d1ddcb19e4a269b451034933d3455/handler/transcript/translation/__lang__&#34;}' data-bumper-metadata='null' data-autoadvance-enabled="False" data-poster='null' tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <div class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <div class="video-player"> <div id="f63d1ddcb19e4a269b451034933d3455"></div> <h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4> <h4 class="hd hd-4 video-hls-error is-hidden"> Your browser does not support this video format. 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<div class="xblock xblock-public_view xblock-public_view-vertical" data-has-score="False" data-block-type="vertical" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@vertical+block@f23e4ab02b70454fb68d799cfc2c4b61" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <h2 class="hd hd-2 unit-title">Reference Summary</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@1f46ad7e4e2a4ef9ac79a296860c2b26"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-has-score="False" data-block-type="html" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@1f46ad7e4e2a4ef9ac79a296860c2b26" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <h3> <b> Polarity </b> </h3> <p> Polarity is dependent on <br /> - Polar bonds <br /> - Geometry of the molecule </p> <br /> <h3> <b> Dipoles </b> </h3> <p> An unequal electron distribution is called a dipole. <br />Dipoles are often shown by a T-arrow or a &delta;. The dipoles are shown on the figure in red. The overall dipoles (which are a vector sum of the individual dipoles) are shown in blue.</p> <img src='/assets/courseware/v1/184e6057f96249749893be9a7b8a4a5b/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b00.png' alt="This image shoes two molecules, carbon dioxide C(=O)=O and water [H]O[H]. The dipoles and overal dipole of each molecule are drawn. For carbon dioxide, the C is labelled with a delta plus symbol to indicate a partial positive charge and the O atoms are labelled with delta minus symbols to indicate partial negative charges. There are two arrows shown to represent the dipoles. The non-arrowhead end of the arrow is crossed, similar to a plus sign. Each arrow starts at the C and points towards one of the O atoms. There is no overall dipole of carbon dioxide because the dipoles are equal in magnitude and opposite in direction. For water, the O is labelled with a delta minus symbol, and the two H atoms are labelled with delta positive symbols. Similar to carbon dixoide, water has two arrows with crossed tails. Each arrow starts at one of the H atoms and points towards the O atom. The H atoms are shown as bent downwards on the left and right sides of the O atom. Therefore, overall dipole is in the up direction."> <br /><br /> <h3> For <b>CO₂</b>... <br /></h3> <p>The C=O bond is POLAR since O is more electronegative than C (attracts electrons more), BUT the vector sum of the dipoles is equal to zero, so CO₂ is NON-POLAR overall. <h3> For <b>H₂O</b>... <br /></h3> <p>The O-H bond is POLAR since O is more electronegative than H. The vector sum of dipoles is NOT equal to zero, so H₂O is POLAR overall. </p> <br /> <h3> <b> Example: Propane v. Propanol </b> </h3> <img src='/assets/courseware/v1/d4d3fd8637291c7e66d0623321721c75/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b3.png' alt="This image is of propane: CCC"> <p> This is <b>propane</b>. <br /> Chemical formula: C₃H₈ <br /> Bonds: NON-POLAR, since C and H share electrons equally <br /> Molecule: NON-POLAR </p> <br /> <img src='/assets/courseware/v1/ee3c0cdc87424246c979049c10867e7a/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b4.png' alt="This image is of propanol: CCCO. The O is labelled with a delta minus to indicate that it has a partial negative charge symbol. The C and H that are attached to this O atom are each labelled with a delta plus symbol to indicate that they each have partial positive charges."> <p> This is <b>propanol</b>. <br /> Chemical formula: C₃H₇OH or C₃H₈O <br /> Bonds: C-O and O-H bonds are POLAR, since O is more electronegative (attracts electrons more) than C or H <br /> Molecule: POLAR, the dipole vectors do not cancel out. </p> </div> </div> </div> </div>

<div class="xblock xblock-public_view xblock-public_view-vertical" data-has-score="False" data-block-type="vertical" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@vertical+block@be282d93db144381a50765ca42caeed6" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <h2 class="hd hd-2 unit-title">Exercise 1 (Butane v. Butanol)</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@c87336a8febc432591ffe402a470339e"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-has-score="False" data-block-type="html" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@c87336a8febc432591ffe402a470339e" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p> Let us now examine the molecules <b>butane</b>... </p> <img src='/assets/courseware/v1/34f2cde685cb2d169661fb39c852d845/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b5.png' alt="This image is of butane: CCCC"> <p> ...and<b> butanol</b>.</p> <img src='/assets/courseware/v1/6b41eb5784947412dbbcd054a6383487/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b6.png' alt="This image is of butanol: CCCCO"> </div> </div> <div class="vert vert-1" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_b92ca1d17cd341f0ab943fd78c31c95e" class="problems-wrapper" role="group" aria-labelledby="b92ca1d17cd341f0ab943fd78c31c95e-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="3" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;b92ca1d17cd341f0ab943fd78c31c95e-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butane: Chemical Formula &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@b92ca1d17cd341f0ab943fd78c31c95e-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Give the chemical formula of &lt;b&gt;butane&lt;/b&gt;, shown above. (Enter answers as an integer.)&lt;/p&gt; &lt;h3&gt; How many C&#39;s? &lt;/h3&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; id=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; aria-describedby=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_b92ca1d17cd341f0ab943fd78c31c95e_2_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;br/&gt; &lt;h3&gt; How many H&#39;s? &lt;/h3&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 2&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; id=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; aria-describedby=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_b92ca1d17cd341f0ab943fd78c31c95e_3_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;br/&gt; &lt;h3&gt; How many O&#39;s? &lt;/h3&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 3&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; id=&#34;input_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; aria-describedby=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_b92ca1d17cd341f0ab943fd78c31c95e_4_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_b92ca1d17cd341f0ab943fd78c31c95e_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butane: Chemical Formula&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_b92ca1d17cd341f0ab943fd78c31c95e&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_b92ca1d17cd341f0ab943fd78c31c95e&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;b92ca1d17cd341f0ab943fd78c31c95e-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;b92ca1d17cd341f0ab943fd78c31c95e-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;b92ca1d17cd341f0ab943fd78c31c95e-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-2" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_5cc3c922714948d4b5c120681426c62e" class="problems-wrapper" role="group" aria-labelledby="5cc3c922714948d4b5c120681426c62e-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="2" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;5cc3c922714948d4b5c120681426c62e-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butane: Polarity &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5cc3c922714948d4b5c120681426c62e-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Does &lt;b&gt;butane&lt;/b&gt; have any dipoles?&lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;select name=&#34;input_5cc3c922714948d4b5c120681426c62e_2_1&#34; id=&#34;input_5cc3c922714948d4b5c120681426c62e_2_1&#34; aria-describedby=&#34;status_5cc3c922714948d4b5c120681426c62e_2_1&#34;&gt; &lt;option value=&#34;option_5cc3c922714948d4b5c120681426c62e_2_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Yes&#34;&gt; Yes&lt;/option&gt; &lt;option value=&#34;No&#34;&gt; No&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_5cc3c922714948d4b5c120681426c62e_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_5cc3c922714948d4b5c120681426c62e_2_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;p&gt;Is &lt;b&gt;butane&lt;/b&gt; POLAR or NON-POLAR?&lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 2&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;select name=&#34;input_5cc3c922714948d4b5c120681426c62e_3_1&#34; id=&#34;input_5cc3c922714948d4b5c120681426c62e_3_1&#34; aria-describedby=&#34;status_5cc3c922714948d4b5c120681426c62e_3_1&#34;&gt; &lt;option value=&#34;option_5cc3c922714948d4b5c120681426c62e_3_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Polar&#34;&gt; Polar&lt;/option&gt; &lt;option value=&#34;Non-polar&#34;&gt; Non-polar&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_5cc3c922714948d4b5c120681426c62e_3_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_5cc3c922714948d4b5c120681426c62e_3_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_5cc3c922714948d4b5c120681426c62e_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butane: Polarity&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_5cc3c922714948d4b5c120681426c62e&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_5cc3c922714948d4b5c120681426c62e&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;5cc3c922714948d4b5c120681426c62e-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;5cc3c922714948d4b5c120681426c62e-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;5cc3c922714948d4b5c120681426c62e-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-3" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_08238303e7cc41bd882ffb7e109ef57a" class="problems-wrapper" role="group" aria-labelledby="08238303e7cc41bd882ffb7e109ef57a-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="3" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;08238303e7cc41bd882ffb7e109ef57a-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butanol: Chemical Formula &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@08238303e7cc41bd882ffb7e109ef57a-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Give the chemical formula of &lt;b&gt;butanol&lt;/b&gt;, also shown above. (Enter answers as an integer.)&lt;/p&gt; &lt;p&gt; How many C&#39;s? &lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; id=&#34;input_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; aria-describedby=&#34;status_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_08238303e7cc41bd882ffb7e109ef57a_2_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_08238303e7cc41bd882ffb7e109ef57a_2_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;p&gt; How many H&#39;s? &lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 2&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; id=&#34;input_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; aria-describedby=&#34;status_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_08238303e7cc41bd882ffb7e109ef57a_3_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_08238303e7cc41bd882ffb7e109ef57a_3_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;p&gt; How many O&#39;s? &lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 3&#34; role=&#34;group&#34;&gt;&lt;div id=&#34;inputtype_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; class=&#34; capa_inputtype textline&#34;&gt; &lt;div class=&#34;unanswered &#34;&gt; &lt;input type=&#34;text&#34; name=&#34;input_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; id=&#34;input_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; aria-describedby=&#34;status_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; value=&#34;&#34;/&gt; &lt;span class=&#34;trailing_text&#34; id=&#34;trailing_text_08238303e7cc41bd882ffb7e109ef57a_4_1&#34;/&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;p id=&#34;answer_08238303e7cc41bd882ffb7e109ef57a_4_1&#34; class=&#34;answer&#34;/&gt; &lt;/div&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_08238303e7cc41bd882ffb7e109ef57a_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butanol: Chemical Formula&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_08238303e7cc41bd882ffb7e109ef57a&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_08238303e7cc41bd882ffb7e109ef57a&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;08238303e7cc41bd882ffb7e109ef57a-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;08238303e7cc41bd882ffb7e109ef57a-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;08238303e7cc41bd882ffb7e109ef57a-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-4" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_f60870f0aa2e4169b700c655f7eaefd5" class="problems-wrapper" role="group" aria-labelledby="f60870f0aa2e4169b700c655f7eaefd5-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="2" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;f60870f0aa2e4169b700c655f7eaefd5-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butanol: Polarity &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@f60870f0aa2e4169b700c655f7eaefd5-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Does &lt;b&gt;butanol&lt;/b&gt; have any dipoles?&lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;select name=&#34;input_f60870f0aa2e4169b700c655f7eaefd5_2_1&#34; id=&#34;input_f60870f0aa2e4169b700c655f7eaefd5_2_1&#34; aria-describedby=&#34;status_f60870f0aa2e4169b700c655f7eaefd5_2_1&#34;&gt; &lt;option value=&#34;option_f60870f0aa2e4169b700c655f7eaefd5_2_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Yes&#34;&gt; Yes&lt;/option&gt; &lt;option value=&#34;No&#34;&gt; No&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_f60870f0aa2e4169b700c655f7eaefd5_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_f60870f0aa2e4169b700c655f7eaefd5_2_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;p&gt;Is &lt;b&gt;butanol&lt;/b&gt; POLAR or NON-POLAR?&lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 2&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;select name=&#34;input_f60870f0aa2e4169b700c655f7eaefd5_3_1&#34; id=&#34;input_f60870f0aa2e4169b700c655f7eaefd5_3_1&#34; aria-describedby=&#34;status_f60870f0aa2e4169b700c655f7eaefd5_3_1&#34;&gt; &lt;option value=&#34;option_f60870f0aa2e4169b700c655f7eaefd5_3_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Polar&#34;&gt; Polar&lt;/option&gt; &lt;option value=&#34;Non-polar&#34;&gt; Non-polar&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_f60870f0aa2e4169b700c655f7eaefd5_3_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_f60870f0aa2e4169b700c655f7eaefd5_3_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_f60870f0aa2e4169b700c655f7eaefd5_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butanol: Polarity&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_f60870f0aa2e4169b700c655f7eaefd5&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_f60870f0aa2e4169b700c655f7eaefd5&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;f60870f0aa2e4169b700c655f7eaefd5-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;f60870f0aa2e4169b700c655f7eaefd5-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;f60870f0aa2e4169b700c655f7eaefd5-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-5" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_37951cd557854581a16944cf2be5e438" class="problems-wrapper" role="group" aria-labelledby="37951cd557854581a16944cf2be5e438-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="1" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;37951cd557854581a16944cf2be5e438-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butanol: Polar Group &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@37951cd557854581a16944cf2be5e438-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Clicking on the image will place the circle on the image at the cursor location. &lt;br/&gt;Click on the image of butanol below to place the circle over butanol&#39;s polar group &lt;em&gt;(the one with unequal charge distribution)&lt;/em&gt;. &lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;imageinput capa_inputtype&#34; id=&#34;inputtype_37951cd557854581a16944cf2be5e438_2_1&#34;&gt; &lt;input type=&#34;hidden&#34; class=&#34;imageinput&#34; src=&#34;/assets/courseware/v1/6b41eb5784947412dbbcd054a6383487/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b6.png&#34; name=&#34;input_37951cd557854581a16944cf2be5e438_2_1&#34; id=&#34;input_37951cd557854581a16944cf2be5e438_2_1&#34; value=&#34;&#34;/&gt; &lt;div style=&#34;position:relative;&#34;&gt; &lt;div id=&#34;imageinput_37951cd557854581a16944cf2be5e438_2_1&#34; style=&#34; background-image: url(&#39;/assets/courseware/v1/6b41eb5784947412dbbcd054a6383487/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b6.png&#39;); width: 238px; height: 91px; position: relative; left: 0; top: 0;&#34;&gt; &lt;img src=&#34;/static/images/green-pointer.6578b36dab94.png&#34; id=&#34;cross_37951cd557854581a16944cf2be5e438_2_1&#34; style=&#34;position: absolute; top: 0px; left: 0px;&#34; alt=&#34;Selection indicator&#34;/&gt; &lt;/div&gt; &lt;div data-width=&#34;238&#34; data-height=&#34;91&#34; id=&#34;answer_37951cd557854581a16944cf2be5e438_2_1&#34; style=&#34; position: absolute; left: 0; top: 0;&#34;/&gt; &lt;/div&gt; &lt;script type=&#34;text/javascript&#34; charset=&#34;utf-8&#34;&gt; (new ImageInput(&#39;37951cd557854581a16944cf2be5e438_2_1&#39;)); &lt;/script&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_37951cd557854581a16944cf2be5e438_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_37951cd557854581a16944cf2be5e438_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butanol: Polar Group&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_37951cd557854581a16944cf2be5e438&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_37951cd557854581a16944cf2be5e438&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;37951cd557854581a16944cf2be5e438-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;37951cd557854581a16944cf2be5e438-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;37951cd557854581a16944cf2be5e438-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-6" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_80ffa00ea42c4b0f9817ca7f503dc3aa" class="problems-wrapper" role="group" aria-labelledby="80ffa00ea42c4b0f9817ca7f503dc3aa-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa/handler/xmodule_handler" data-problem-score="0.0" data-problem-total-possible="1.0" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;80ffa00ea42c4b0f9817ca7f503dc3aa-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Butanol: Dipoles &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@80ffa00ea42c4b0f9817ca7f503dc3aa-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Describe the dipoles (&amp;#948;) and each of their charges for the butanol molecule below. To do so, use the dropdown options to indicate the dipole (&amp;#948;+ and &amp;#948;-) for the corresponding region of the dipoles.&lt;/p&gt; &lt;p&gt;&lt;img src=&#34;/assets/courseware/v1/6b41eb5784947412dbbcd054a6383487/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b6.png&#34; width=&#34;400&#34; style=&#34;float:center;&#34; alt=&#34;Butanol.&#34;/&gt; &lt;/p&gt; &lt;ul&gt; &lt;li&gt;the C adjacent to the -OH group:&lt;div class=&#34;inline&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input inline&#34;&gt; &lt;select name=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1&#34; id=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1&#34; aria-describedby=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1&#34;&gt; &lt;option value=&#34;option_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;&amp;#948;+&#34;&gt; &amp;#948;+&lt;/option&gt; &lt;option value=&#34;&amp;#948;-&#34;&gt; &amp;#948;-&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_80ffa00ea42c4b0f9817ca7f503dc3aa_2_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt;&lt;/li&gt; &lt;li&gt;the O in the -OH group:&lt;div class=&#34;inline&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 2&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input inline&#34;&gt; &lt;select name=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1&#34; id=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1&#34; aria-describedby=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1&#34;&gt; &lt;option value=&#34;option_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;&amp;#948;+&#34;&gt; &amp;#948;+&lt;/option&gt; &lt;option value=&#34;&amp;#948;-&#34;&gt; &amp;#948;-&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_80ffa00ea42c4b0f9817ca7f503dc3aa_3_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt;&lt;/li&gt; &lt;li&gt;the H in the -OH group:&lt;div class=&#34;inline&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 3&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input inline&#34;&gt; &lt;select name=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1&#34; id=&#34;input_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1&#34; aria-describedby=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1&#34;&gt; &lt;option value=&#34;option_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;&amp;#948;+&#34;&gt; &amp;#948;+&lt;/option&gt; &lt;option value=&#34;&amp;#948;-&#34;&gt; &amp;#948;-&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_80ffa00ea42c4b0f9817ca7f503dc3aa_4_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt;&lt;/li&gt; &lt;/ul&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_80ffa00ea42c4b0f9817ca7f503dc3aa_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Butanol: Dipoles&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_80ffa00ea42c4b0f9817ca7f503dc3aa&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_80ffa00ea42c4b0f9817ca7f503dc3aa&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;80ffa00ea42c4b0f9817ca7f503dc3aa-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;80ffa00ea42c4b0f9817ca7f503dc3aa-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;80ffa00ea42c4b0f9817ca7f503dc3aa-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> </div> </div>

<div class="xblock xblock-public_view xblock-public_view-vertical" data-has-score="False" data-block-type="vertical" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@vertical+block@443fb322162c404b9da2b0fc273e4817" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <h2 class="hd hd-2 unit-title">Exercise 2 (Benzoic Acid)</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@3dafab86d1b8455cb6efa843899d6dd4"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-has-score="False" data-block-type="html" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@3dafab86d1b8455cb6efa843899d6dd4" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p> Now let us examine <b> benzoic acid</b>.</p> <img src='/assets/courseware/v1/7b82fda32549e9a4975dda749a99b24e/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b7.png' alt="This image is of benzoic acid: C1=CC=C(C=C1)C(=O)O"> </div> </div> <div class="vert vert-1" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_40d25c168f6344c0ba5d8b6a54c6c073" class="problems-wrapper" role="group" aria-labelledby="40d25c168f6344c0ba5d8b6a54c6c073-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="1" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;40d25c168f6344c0ba5d8b6a54c6c073-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Benzoic Acid: Bond Polarity &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@40d25c168f6344c0ba5d8b6a54c6c073-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;label class=&#34;problem-group-label&#34; for=&#34;input_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34; id=&#34;label_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34;&gt;Does benzoic acid have any polar bonds?&lt;/label&gt; &lt;select name=&#34;input_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34; id=&#34;input_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34; aria-describedby=&#34;status_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34;&gt; &lt;option value=&#34;option_40d25c168f6344c0ba5d8b6a54c6c073_2_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Yes&#34;&gt; Yes&lt;/option&gt; &lt;option value=&#34;No&#34;&gt; No&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_40d25c168f6344c0ba5d8b6a54c6c073_2_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_40d25c168f6344c0ba5d8b6a54c6c073_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Benzoic Acid: Bond Polarity&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_40d25c168f6344c0ba5d8b6a54c6c073&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_40d25c168f6344c0ba5d8b6a54c6c073&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;40d25c168f6344c0ba5d8b6a54c6c073-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;40d25c168f6344c0ba5d8b6a54c6c073-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;40d25c168f6344c0ba5d8b6a54c6c073-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> <div class="vert vert-2" data-id="block-v1:OCW+Pre-7.01+1T2020+type@drag-and-drop-v2+block@95a0648e08784a3998de95890b0e6fd8"> <div class="xblock xblock-public_view xblock-public_view-drag-and-drop-v2" data-has-score="True" data-block-type="drag-and-drop-v2" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@drag-and-drop-v2+block@95a0648e08784a3998de95890b0e6fd8" data-init="DragAndDropBlock" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"mode": "assessment", "problem_text": "\u003cp\u003eIf benzoic acid has polar bonds, label the dipoles (\u03b4) and the charge on each. To do so, drag and drop the \u03b4+ and \u03b4- icons within the appropriate square target zones below. (Note: you may not need all of the target zones.)\u003c/p\u003e\n \u003cp\u003e If benzoic acid does \u003cb\u003eNOT\u003c/b\u003e have polar bonds, drag and drop the \"No Dipole\" icon within the rectangular target zone that is located in the top left corner.\u003c/p\u003e", "max_attempts": 0, "url_name": "95a0648e08784a3998de95890b0e6fd8", "items": [{"imageDescription": "", "imageURL": "", "displayName": "\u03b4+", "expandedImageURL": "", "id": 0}, {"imageDescription": "", "imageURL": "", "displayName": "\u03b4+", "expandedImageURL": "", "id": 1}, {"imageDescription": "", "imageURL": "", "displayName": "No Dipole", "expandedImageURL": "", "id": 2}, {"imageDescription": "", "imageURL": "", "displayName": "\u03b4-", "expandedImageURL": "", "id": 3}, {"imageDescription": "", "imageURL": "", "displayName": "\u03b4-", "expandedImageURL": "", "id": 4}], "zones": [{"uid": "top", "height": "90", "x": "20", "description": "Use this zone to label the molecule.", "align": "center", "width": "100", "y": "40", "title": "ring"}, {"uid": "middle", "height": "50", "x": "150", "description": "Use this zone to label the molecule.", "align": "center", "width": "50", "y": "60", "title": "C1"}, {"uid": "bottom", "height": "50", "x": "180", "description": "Use this zone to label the molecule.", "align": "center", "width": "50", "y": "115", "title": "ketone"}, {"uid": "zone-1", "height": "50", "x": "170", "description": "Use this zone to label the molecule.", "align": "center", "width": "50", "y": "5", "title": "O"}, {"uid": "zone-2", "height": "50", "x": "220", "description": "Use this zone to label the molecule.", "align": "center", "width": "50", "y": "5", "title": "H"}, {"uid": "zone-3", "height": "35", "x": 0, "description": "Use this zone to label the molecule.", "align": "center", "width": "100", "y": 0, "title": "None?"}], "type": "drag-and-drop-v2", "display_zone_borders": true, "is_anonymous_user": true, "weighted_max_score": 1.0, "display_zone_labels": false, "item_background_color": null, "block_id": "block-v1:OCW+Pre-7.01+1T2020+type@drag-and-drop-v2+block@95a0648e08784a3998de95890b0e6fd8", "item_text_color": null, "title": "Benzoic Acid: Dipoles", "target_img_description": "The line angle diagram for the molecule benzoic acid.", "has_deadline_passed": false, "max_items_per_zone": 1, "target_img_expanded_url": "/assets/courseware/v1/7b82fda32549e9a4975dda749a99b24e/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b7.png", "weight": 1.0, "show_problem_header": false, "show_title": true, "graded": false, "display_name": "Benzoic Acid: Dipoles"} </script> <div class="themed-xblock xblock--drag-and-drop"> <span class="fa fa-spin fa-spinner initial-load-spinner" aria-hidden="true"></span> Loading drag and drop problem. </div> </div> </div> <div class="vert vert-3" data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_bbe9e931efc74acdb7e7522161ad0bbe" class="problems-wrapper" role="group" aria-labelledby="bbe9e931efc74acdb7e7522161ad0bbe-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe" data-url="/courses/course-v1:OCW+Pre-7.01+1T2020/xblock/block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="1" data-attempts-used="0" data-content=" &lt;h3 class=&#34;hd hd-3 problem-header&#34; id=&#34;bbe9e931efc74acdb7e7522161ad0bbe-problem-title&#34; aria-describedby=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe-problem-progress&#34; tabindex=&#34;-1&#34;&gt; Benzoic Acid: Molecule Polarity &lt;/h3&gt; &lt;div class=&#34;problem-progress&#34; id=&#34;block-v1:OCW+Pre-7.01+1T2020+type@problem+block@bbe9e931efc74acdb7e7522161ad0bbe-problem-progress&#34;&gt;&lt;/div&gt; &lt;div class=&#34;problem&#34;&gt; &lt;div&gt; &lt;p&gt;Would you predict that benzoic acid is a polar molecule? &lt;/p&gt; &lt;div class=&#34;wrapper-problem-response&#34; tabindex=&#34;-1&#34; aria-label=&#34;Question 1&#34; role=&#34;group&#34;&gt;&lt;div class=&#34;inputtype option-input &#34;&gt; &lt;select name=&#34;input_bbe9e931efc74acdb7e7522161ad0bbe_2_1&#34; id=&#34;input_bbe9e931efc74acdb7e7522161ad0bbe_2_1&#34; aria-describedby=&#34;status_bbe9e931efc74acdb7e7522161ad0bbe_2_1&#34;&gt; &lt;option value=&#34;option_bbe9e931efc74acdb7e7522161ad0bbe_2_1_dummy_default&#34;&gt;Select an option&lt;/option&gt; &lt;option value=&#34;Yes&#34;&gt; Yes&lt;/option&gt; &lt;option value=&#34;No&#34;&gt; No&lt;/option&gt; &lt;/select&gt; &lt;div class=&#34;indicator-container&#34;&gt; &lt;span class=&#34;status unanswered&#34; id=&#34;status_bbe9e931efc74acdb7e7522161ad0bbe_2_1&#34; data-tooltip=&#34;Not yet answered.&#34;&gt; &lt;span class=&#34;sr&#34;&gt;unanswered&lt;/span&gt;&lt;span class=&#34;status-icon&#34; aria-hidden=&#34;true&#34;/&gt; &lt;/span&gt; &lt;/div&gt; &lt;p class=&#34;answer&#34; id=&#34;answer_bbe9e931efc74acdb7e7522161ad0bbe_2_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;solution-span&#34;&gt; &lt;span id=&#34;solution_bbe9e931efc74acdb7e7522161ad0bbe_solution_1&#34;/&gt; &lt;/div&gt;&lt;/div&gt; &lt;div class=&#34;action&#34;&gt; &lt;input type=&#34;hidden&#34; name=&#34;problem_id&#34; value=&#34;Benzoic Acid: Molecule Polarity&#34; /&gt; &lt;div class=&#34;submit-attempt-container&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;submit btn-brand&#34; data-submitting=&#34;Submitting&#34; data-value=&#34;Submit&#34; data-should-enable-submit-button=&#34;True&#34; aria-describedby=&#34;submission_feedback_bbe9e931efc74acdb7e7522161ad0bbe&#34; &gt; &lt;span class=&#34;submit-label&#34;&gt;Submit&lt;/span&gt; &lt;/button&gt; &lt;div class=&#34;submission-feedback&#34; id=&#34;submission_feedback_bbe9e931efc74acdb7e7522161ad0bbe&#34;&gt; &lt;span class=&#34;sr&#34;&gt;Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.&lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;problem-action-buttons-wrapper&#34;&gt; &lt;span class=&#34;problem-action-button-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;reset problem-action-btn btn-default btn-small&#34; data-value=&#34;Reset&#34;&gt;&lt;span class=&#34;icon fa fa-refresh&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt;&lt;span aria-hidden=&#34;true&#34;&gt;Reset&lt;/span&gt;&lt;span class=&#34;sr&#34;&gt;Reset your answer&lt;/span&gt;&lt;/button&gt; &lt;/span&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-gentle-alert is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-exclamation-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;bbe9e931efc74acdb7e7522161ad0bbe-problem-title&#34;&gt; &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification warning notification-save is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-save&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;bbe9e931efc74acdb7e7522161ad0bbe-problem-title&#34;&gt;None &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class=&#34;notification general notification-show-answer is-hidden&#34; tabindex=&#34;-1&#34;&gt; &lt;span class=&#34;icon fa fa-info-circle&#34; aria-hidden=&#34;true&#34;&gt;&lt;/span&gt; &lt;span class=&#34;notification-message&#34; aria-describedby=&#34;bbe9e931efc74acdb7e7522161ad0bbe-problem-title&#34;&gt;Answers are displayed within the problem &lt;/span&gt; &lt;div class=&#34;notification-btn-wrapper&#34;&gt; &lt;button type=&#34;button&#34; class=&#34;btn btn-default btn-small notification-btn review-btn sr&#34;&gt;Review&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; " data-graded="False"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading&hellip;</span> </p> </div> </div> </div> </div> </div>

<div class="xblock xblock-public_view xblock-public_view-vertical" data-has-score="False" data-block-type="vertical" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@vertical+block@1edbc91958854c8a91d90e0d9aaf0d5d" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <h2 class="hd hd-2 unit-title">Exercise 3 (Lysine)</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@a2f6f1f4c623436aa0fc8b342686f609"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-has-score="False" data-block-type="html" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@html+block@a2f6f1f4c623436aa0fc8b342686f609" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p>Let us look at one more: <b> Lysine</b>.</p> <img src='/assets/courseware/v1/e4cc685a1b4e87c3d4c87b0737ab68f0/asset-v1:OCW+Pre-7.01+1T2020+type@asset+block/b8.png' alt="This image is of lysine: [NH2]C(CCCC[NH3+])C([OH])=O"/> </div> </div> <div class="vert vert-1" data-id="block-v1:OCW+Pre-7.01+1T2020+type@drag-and-drop-v2+block@cbad55304dee4b2198d137caec1bddc4"> <div class="xblock xblock-public_view xblock-public_view-drag-and-drop-v2" data-has-score="True" data-block-type="drag-and-drop-v2" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@drag-and-drop-v2+block@cbad55304dee4b2198d137caec1bddc4" data-init="DragAndDropBlock" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"mode": "assessment", "problem_text": "On the image below, label whether the group within each box is a polar or non-polar group by dragging and dropping the \"P\" and \"NP\" icons within the appropriate boxes. \u003cbr/\u003e P = Polar group \u003cbr/\u003e NP = Non-polar group", "max_attempts": 0, "url_name": "cbad55304dee4b2198d137caec1bddc4", "items": [{"imageDescription": "", "imageURL": "", "displayName": "NP", "expandedImageURL": "", "id": 0}, {"imageDescription": "", "imageURL": "", "displayName": "NP", "expandedImageURL": "", "id": 1}, {"imageDescription": "", "imageURL": "", "displayName": "P", "expandedImageURL": "", "id": 2}, {"imageDescription": "", "imageURL": "", "displayName": "P", "expandedImageURL": "", "id": 3}, {"imageDescription": "", "imageURL": "", "displayName": "P", "expandedImageURL": "", "id": 4}, {"imageDescription": "", "imageURL": "", "displayName": "P", "expandedImageURL": "", "id": 5}], "zones": [{"uid": "top", "height": "60", "x": "20", "description": "Use this zone to label the molecule.", "align": "center", "width": "90", "y": "25", "title": "NH2 no.1"}, {"uid": "middle", "height": "60", "x": "40", "description": "Use this zone to label the molecule.", "align": "center", "width": "60", "y": "90", "title": "C1"}, {"uid": "bottom", "height": "60", "x": "75", "description": "Use this zone to label the molecule.", "align": "center", "width": "60", "y": "160", "title": "C2"}, {"uid": "zone-1", "height": "60", "x": "20", "description": "Use this zone to label the molecule.", "align": "center", "width": "90", "y": "230", "title": "NH2 no.2"}, {"uid": "zone-2", "height": "60", "x": "130", "description": "Use this zone to label the molecule.", "align": "center", "width": "60", "y": "270", "title": "O"}, {"uid": "zone-3", "height": "60", "x": "170", "description": "Use this zone to label the molecule.", "align": "center", "width": "80", "y": "200", "title": "OH"}], "type": 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data-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5e1e9b31f26946c7b82f758c35ee99b8"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-has-score="True" data-block-type="problem" data-request-token="a7c18ade852011ef87c612578eed8dbf" data-usage-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5e1e9b31f26946c7b82f758c35ee99b8" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1" data-graded="False" data-course-id="course-v1:OCW+Pre-7.01+1T2020"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_5e1e9b31f26946c7b82f758c35ee99b8" class="problems-wrapper" role="group" aria-labelledby="5e1e9b31f26946c7b82f758c35ee99b8-problem-title" data-problem-id="block-v1:OCW+Pre-7.01+1T2020+type@problem+block@5e1e9b31f26946c7b82f758c35ee99b8" 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