2通式:( General Formula) Alkane: CnH2n+2 CH3叔仲伯 CH3-C-CH-CH2-CH3 Alkyl: Cn2n+1季CH3CH 3命名:(N (1). Common Names of Alkanes 1~10碳:甲,乙,丙,丁,戊,已,庚,辛,壬,癸 Methane, Ethane -a-Decane 同分异构:( sommers)2.通式： （General Formula) Alkane: Cn H2n+2 Alkyl: Cn H2n+1 CH3 C CH CH2 CH3 CH3 CH3CH3 叔 仲 伯 季 3.命名：( N (1). Common Names of Alkanes: 1~10碳： 甲， 乙，丙，丁，戊，己，庚，辛，壬，癸 Methane, Ethane,---------------------Decane 同分异构：(Isomers)