1 Use the molecular models to decide whether the following two structures are different or the same If you

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CH3

2.Draw all the structures of all the constitutional isomers of C5H12. Label all those isomers that are straight-chain hydrocarbons.

3. Build the cis and trans isomers of CH3CH=CHCH2CH3, and draw their structures below. Label each structure as cis or trans.

4. Build cyclohexane (C6H12, a cyclic hydrocarbon), and rotate the bonds to obtain the boat and chair conformations.

5. Build cyclohexene [C6H10] and benzene [CH6], and draw their structures below.

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