Hydrocarbons Hydrocarbons are molecules that are made of carbon and hydrogen ONLY. TABLE 3-1 Hydrocarbon Classifications Compound Type Functional Group Example alkanes none(no double or triple bonds) CH3-CH2-CH3,propane alkenes C-Cdouble bond CH2=CH-CH3,propene alkynes -C=C-triple bond H一C=C-CH3,propyne CH,CH, aromatics benzene ring ethylbenzene Copyright 2010 Pearson Prentice Hall,Inc. Hydrocarbons are molecules that are made of carbon and hydrogen ONLY. Hydrocarbons