Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened?

The reaction was exothermic.

Explanation:

Exothermic reactions turn warm or release heat, thus the reaction in the solution was exothermic.

energy has been transformed from one form to another.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint