Chemical Energy

Chemical energy is energy that is released during a chemical reaction. It is usually released as heat, but can be released as other forms of energy, such as light. The amount of chemical energy released can vary depending on the reactants.

Example: Batteries store chemical energy. When it is connected to a circuit, chemical energy is released and converted to electrical energy. That electrical energy, in turn can produce heat and light. Another example of stored chemical energy would be coal. When coal is burned, it turns its energy into heat energy.