| A | B |
| organic compound | a compound that contains carbon, not inorganic |
| structural formula | shows the kind, number and arrangement of atoms |
| isomer | compound having different structural formulas |
| hydrocarbon | organic compound containing hydrogen and carbon |
| saturated hydrocarbon | an alkane, having all single bonds |
| unsaturated hydrocarbon | either an alkene or alkyne |
| alkane series | hydrocarbon series with all single bonds |
| alkene series | hydrocarbon series with at least one double bond |
| alkyne series | hydrocarbon series with at least one triple bond |
| substituted hydrocarbon | formed when hydrogen is replaced |