Draw the full structures of these compounds and identify the functional groups. a) CH2=CHCONH(CH2)2CN
b) EtO2CCH2OCOEt

See attached picture.

Explanation:

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a) In this case, since oxygen there is present as C=O, as shown on the attached picture, we can see the following functional groups:

- Double bond (alkene).

- Amide group.

- Nitrile group.

b) In this case, since Et suggest an ethyl radical (CH3-CH2-) and the presence of those 2 oxygen atoms accounts for carboxyl, we have:

- Two carboxyl groups for an ethyl propanedioate ester.

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