Of all the forms of energy today, chemical energy is by far the most commonly used. It is found in batteries and handheld devices and their chemical reactions, or in the millions of uses developed for fossil fuels and theri numerious chemical reactions. Coal is burned for energy throughout the world, gasoline combusts in our transportation vehicles and natural gasses are burned every night to warm homes. You can find more information here: http://ezinearticles.com/?Chemical-Energy---Why-We-Use-It-More-Than-Any-Other-Form-of-Energy&id=541447
Chemical energy is used in many different ways. The act of burning coal, combusting gas and burning wood all fall under the term of chemical energy. Some uses are to run our cars, heat our homes, power our houses and even includes the use of batteries in our hand held electronics.