Which type of energy is classified strictly as potential energy?

Chemical energy is classified strictly as potential energy because it is stored within the bonds of chemical compounds. This type of energy has the potential to do work when these bonds are broken during chemical reactions. For instance, in biological systems, when food molecules are metabolized, the chemical energy released is used to power physiological processes and biological functions.

In contrast, mechanical energy encompasses both potential and kinetic forms, as it can involve energy due to an object's position or motion. Radiant energy refers to electromagnetic energy, such as light, that does not possess potential energy in the same sense as chemical bonds. Electrical energy relates to the movement of charged particles and can be considered both potential and kinetic depending on the context. Thus, chemical energy is distinctively characterized as potential energy inherent in the structure of molecules.