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A three-dimensional molecular structure will be displayed here, and may be moved
about with the mouse. Carbon is gray, hydrogen is white, oxygen is red, and
nitrogen is dark blue.
One of the line formulas in the space beneath the model best represents the
structure. Select the correct formula by pressing the button beneath it. A
response to your answer will be presented by clicking the
Check Answer button.
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Problem 2
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Problem 5
Problem 6
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Problem 10
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