Sec 1 Alkanes and Alkane Isomers Straight-chain alkanes or normal alkanes -Alkanes whose carbon atoms are connected CH4 CH3CH3 CH3CH2CH3 without branching Methane,CH4 Ethane,C2H6 Propane,C3H8 Branched-chain alkanes Alkanes that contain a branching connection of carbons as opposed to a straight-chain alkane CH3 CH3 CH3CHCH3 CH3CH2CHCH3 Isobutane,C4H10 2-Methylbutane,C5H12 (2-methylpropane)Straight-chain alkanes or normal alkanes ▪ Alkanes whose carbon atoms are connected without branching Branched-chain alkanes ▪ Alkanes that contain a branching connection of carbons as opposed to a straight-chain alkane Sec 1 Alkanes and Alkane Isomers