Final answer:
Chemical energy is a type of potential energy stored within the structure of chemical substances and is released during chemical reactions, often as kinetic energy.
Step-by-step explanation:
Chemical energy is a form of potential energy. This type of energy is stored within the chemical structure of substances due to the arrangement of atoms. For example, the chemical energy (a type of potential energy) contained within the molecules of gasoline becomes evident when gasoline is burned. This combustion leads to a chemical reaction that converts the stored potential energy into other forms, notably kinetic energy, which is the energy of motion. In the case of an automobile, the burning of gasoline in the engine generates mechanical energy, propelling the car forward.