Question

Is gasoline evaporated a chemical change

Answer 1

No. The only thing that changed was the looks of the gasoline, not the chemical components.

Answer 2

Answer:

The correct answer is No

Explanation:

A chemical change is often characterized by the following

• new substance is formed
• not easily reversible
• in most cases, process are represented by a chemical equation

The evaporation of gasoline does not meet any of the characteristics above. When, a gasoline evaporates, it is converted from it's liquid form to it's gaseous form hence no new substance is formed, and if this conversion is done in a controlled environment, the gaseous form can be easily reversed back to it's liquid form by cooling. There is no chemical equation needed for this process since no new substance is formed.

Because of the reasons provided earlier, evaporation of gasoline is a physical change and not a chemical change.