chemical energy Label

Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine (U.S. Energy Information Administration (EIA) WWW20180207 https://www.eia.gov/energyexplained/index.cfm?page=about_forms_of_energy)