| A | B |
| methane | 1 carbon |
| ethane | 2 carbons |
| propane | 3 carbons |
| butane | 4 carbons |
| pentane | 5 carbons |
| hexane | 6 carbons |
| heptane | 7 carbons |
| octane | 8 carbons |
| nonane | 9 carbons |
| decane | 10 carbons |
| fractional distillation | process based on boiling point used to separate crude oil |
| as length of carbon chain increases | viscosity and boiling point increase |
| as length of carbon chain decreases | flammability and volatility decrease |
| crude oil | usuallu formed from dead sea animals and plants |
| hydrocarbon | a compound that contains only carbon and hydrogen |
| alkane | a compound that contains carbon and hydrogen only with single bonds only |
| covalent bond | a linkage between two atoms involving the sharing of one pair (single bond), two pairs (double bond), or three pairs (triple bond) of electrons. |
| intermolecular forces | forces of attraction between molecules |
| straight-chained alkanes | each carbon atom is only linked with one or two other carbon atoms |
| branch-chained alkanes | an alkane composed of four or more carbon atoms can take on other forms |