p28 2.2 Alkanes and alkyl groups Isomers烷烃和烷基:异构体 Alkanes: Compounds with C-C single bonds and C-H bonds only (no functional groups Connecting carbons can lead to large or small molecules The formula for an alkane with no rings in it must be c ha. where the number of cs is n Alkanes are saturated(.包和) with hydrogen(mo more can be adde They are also called aliphatic compounds2.2 Alkanes and Alkyl Groups: Isomers 烷烃和烷基: 异构体 • Alkanes: Compounds with C-C single bonds and C-H bonds only (no functional groups) • Connecting carbons can lead to large or small molecules • The formula for an alkane with no rings in it must be CnH2n+2 where the number of C’s is n • Alkanes are saturated(饱和) with hydrogen (no more can be added • They are also called aliphatic compounds p.28