1. Hydrocarbons Saturated Hydrocarbons – Only have single bonds Another name is alkane The alkanes hold the maximum number of hydrogen per carbon atom.

2. 3 Types of Saturated Hydrocarbons 1) Straight chains – Ex: Butane C 4 H 10 2) Branched chains 3) Rings -Ex: Isobutane C 4 H 10 -Ex: Cyclopentane & Cyclohexane

3. Isomers Did you notice Butane and Isobutane both had the formula C 4 H 10 ? An isomer is a compound with the same molecular formula but different structural formulas.

4. Unsaturated Hydrocarbons when hydrocarbons have one or more multiple bonds. If it has double bonds it is called an alkene Ex: Ethene If it has triple bonds it is called an alkyne Ex: Ethyne

5. Common Hydrocarbon Prefixes The prefix added to ane, ene or yne tells the number of carbon atoms in the compound. 1 = meth 2 = eth 3 = prop 4 = but 5 = pent ane = single bond ene = double bond yne = triple bond