Hydrocarbons Hydrocarbons are molecules that are made of carbon and hvdrogen ONLY. TABLE 3-1 Hydrocarbon Classifications Compound Type Functional Group Example alkanes none(no double or triple bonds) CH3-CH2-CH3,propane alkenes CCdouble bond CH2=CH-CH3,propene alkynes -C=C-triple bond H-C=C-CH3,propyne CH,CH aromatics benzene ring ethylbenzene Copyright2010 Pearson Prentice Hall,Inc.Hydrocarbons are molecules that are made of carbon and hydrogen ONLY. Hydrocarbons