3. Identify the relationship between the molecule in the box and structures a-g. Are they identical molecules, resonance structures, constitutional isomers (same molecular formula but atoms arranged differently), or molecules with different molecular formulas? :O: & a. & b. d. & f. g. C. e. H : NH₂ OH

Organic Chemistry: A Guided Inquiry
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Chapter2: Lewis Structures
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Problem 11E: Below each structure in the previous question is a “condensed structure” that tells you...
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### Exercise 3

Identify the relationship between the molecule in the box and structures a-g. Are they identical molecules, resonance structures, constitutional isomers (same molecular formula but atoms arranged differently), or molecules with different molecular formulas?

#### Reference Structure:

The reference molecule shown in the box is:

![Reference Molecule Image](#)
(Note: The image contains a six-membered cyclic compound with a ketone (C=O) and an adjacent nitrogen with a substituted ethyl group attached.)

#### Structures to Compare:

a. ![Structure A Image](#)
   - Structure A shows a six-membered ring with a ketone (C=O) adjacent to a nitrogen with an ethyl group. The nitrogen has a positive formal charge.

b. ![Structure B Image](#)
   - Structure B is a six-membered ring with a ketone adjacent to a nitrogen substituted with a methyl group.

c. ![Structure C Image](#)
   - Structure C shows a six-membered ring where the nitrogen (with a positive formal charge) is bonded to an ethyl group and adjacent to a negatively charged oxygen.

d. ![Structure D Image](#)
   - Structure D depicts a six-membered ring with a ketone adjacent to a nitrogen with an ethyl group. The nitrogen is depicted neutral without formal charges.

e. ![Structure E Image](#)
   - Structure E features a six-membered ring with an oxygen and an amine functional group off the same carbon.

f. ![Structure F Image](#)
   - Structure F illustrates a six-membered ring with a ketone adjacent to a nitrogen with an ethyl group. The nitrogen has a positive formal charge and the oxygen has a negative formal charge.

g. ![Structure G Image](#)
   - Structure G shows a molecule with an amine group and a hydroxyl group attached to a straight four-carbon chain.

For each structure (a-g), identify its relationship to the molecule in the box based on whether they are identical molecules, resonance structures, constitutional isomers, or have different molecular formulas.
Transcribed Image Text:### Exercise 3 Identify the relationship between the molecule in the box and structures a-g. Are they identical molecules, resonance structures, constitutional isomers (same molecular formula but atoms arranged differently), or molecules with different molecular formulas? #### Reference Structure: The reference molecule shown in the box is: ![Reference Molecule Image](#) (Note: The image contains a six-membered cyclic compound with a ketone (C=O) and an adjacent nitrogen with a substituted ethyl group attached.) #### Structures to Compare: a. ![Structure A Image](#) - Structure A shows a six-membered ring with a ketone (C=O) adjacent to a nitrogen with an ethyl group. The nitrogen has a positive formal charge. b. ![Structure B Image](#) - Structure B is a six-membered ring with a ketone adjacent to a nitrogen substituted with a methyl group. c. ![Structure C Image](#) - Structure C shows a six-membered ring where the nitrogen (with a positive formal charge) is bonded to an ethyl group and adjacent to a negatively charged oxygen. d. ![Structure D Image](#) - Structure D depicts a six-membered ring with a ketone adjacent to a nitrogen with an ethyl group. The nitrogen is depicted neutral without formal charges. e. ![Structure E Image](#) - Structure E features a six-membered ring with an oxygen and an amine functional group off the same carbon. f. ![Structure F Image](#) - Structure F illustrates a six-membered ring with a ketone adjacent to a nitrogen with an ethyl group. The nitrogen has a positive formal charge and the oxygen has a negative formal charge. g. ![Structure G Image](#) - Structure G shows a molecule with an amine group and a hydroxyl group attached to a straight four-carbon chain. For each structure (a-g), identify its relationship to the molecule in the box based on whether they are identical molecules, resonance structures, constitutional isomers, or have different molecular formulas.
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