Olive oil contains unsaturated fat. It is a liquid at room temperature because

1) ***

the fatty acids do not contain carbon-to-carbon double bonds.

2)

carbon-to-carbon triple bonds exist within the fatty acids.

3)

the fatty acids are packed very tightly together.

4)

carbon-to-carbon double bonds are found within the glycerol.

5)

carbon-to-carbon double bonds exist within the fatty acids.

The correct answer is 5) carbon-to-carbon double bonds exist within the fatty acids.

Olive oil contains unsaturated fat, meaning it consists of fatty acids that contain one or more carbon-to-carbon double bonds. These double bonds introduce kinks or bends in the fatty acid chain, preventing them from packing tightly together. As a result, the molecules are unable to form a solid or semi-solid structure at room temperature, and the oil remains in a liquid state.

To arrive at this answer, we need to have some basic knowledge about the properties of fats and how they are categorized based on their structure. Understanding that unsaturated fats contain double bonds in the fatty acid chains, which lead to a liquid state at room temperature, allows us to select the correct option.