| A | B | 
| Alkanes | Carbon-carbon single bonds | 
| Alkenes | Carbon-carbon double bonds | 
| Alkynes | Carbon-carbon triple bonds | 
| one | number of bonds formed by halogens | 
| two | number of bonds formed by oxygen | 
| four | number of bonds formed by carbon | 
| -OH | alcohol functional group | 
| -COOH | carboxylic acid functional group | 
| R-O-R' | Ether functional group | 
| buta | prefix for 4 carbon parent chain | 
| eth | prefix for 2 carbon parent chain | 
| hepta | prefix for 7 carbon parent chain | 
| esters | compounds used for perfumes and flavorings | 
| alcohols | used in disinfectants | 
| penta | prefix for 5 carbon parent chain | 
| -yl | ending for a carbon chain branch |