what is an example of chemical energy

Chemical energy is energy stored in the bonds of chemical compounds, such as atoms and molecules. Examples of chemical energy include batteries, biomass, petroleum, natural gas, coal, and food. Chemical energy is converted into other forms of energy when a chemical reaction occurs or matter changes forms. For example, when wood is burned in a fireplace, the chemical energy stored in the wood is converted into thermal energy (heat) and light energy. Another example is gasoline, which is burned to run automobiles, converting chemical energy into kinetic energy.