Final answer:
The term for molecules composed of only single bonds and no rings is alkanes. Alkanes are a type of aliphatic hydrocarbon that contain only carbon-to-carbon single bonds (C-C) and are also known as saturated hydrocarbons.
Step-by-step explanation:
The term for molecules composed of only single bonds and no rings is alkanes. Alkanes are a type of aliphatic hydrocarbon that contain only carbon-to-carbon single bonds (C-C) and are also known as saturated hydrocarbons. They have the maximum number of hydrogen atoms possible and do not contain any C-C double or triple bonds.