Name the following molecules.

SOLUTION:

Molecule 1.

2-methylbutane

Molecule 2.

2,2-Dimethylpropane

Molecule 3.

2,4-Dimethylpentane

Ball-and-stick models allow us to get a little closer to the actual structure of molecules. To finish this nomenclature problem, I add the model of a more complex alkane.

5-Ethyl-2,8-dimethyldodecane