Circle seven (7) DIFFERENT functional groups in the following structures and name the class of compound represented by each group. Draw all structural isomers (constitutional isomers), without duplication, that have a molecular formula of C_3H_9N (4 isomers). Convert the following condensed structures to Lewis structures. CH_3CH_2NHCOCH_3CH(CH_3)_2 HO(CH_2)_4COCH_3