Name the alkanes that do not use Greek prefixes in their names, and draw the structural formula for each.

There are four basic alkanes that do not use Greek prefixes. Their names are derived directly from the number of carbon atoms present in each molecule. These are methane, ethane, propane and butane.

1. Methane (CH4): Methane has one carbon and four hydrogen atoms. The structural formula is simple: * * H * | * C * | * H 2. Ethane (C2H6): Ethane has two carbon and six hydrogen atoms. The structural formula for ethane is as follows: * * H H * | | * C--C * | | * H H * 3. Propane (C3H8): Propane has three carbon and eight hydrogen atoms. The structural formula for propane is: * * H H H * | | | * H--C--C--C--H * | | | * H H H * 4. Butane (C4H10): Butane has four carbon and ten hydrogen atoms. The structural formula for butane is: * * H H H H * | | | | * H--C--C--C--C--H * | | | | * H H H H * These are the four basic alkanes that do not use Greek prefixes in their names, and their respective structural formulas.