where is chemical energy stored

Chemical energy is stored in the bonds of chemical compounds, such as the bonds between atoms and molecules. This energy is a form of potential energy that is released or absorbed when these chemical bonds are broken or formed during a chemical reaction. Examples of chemical energy storage include fuels like petroleum, coal, natural gas, food molecules, and batteries, all of which store energy within their molecular structure. In living organisms, chemical energy is stored in energy-rich molecules like carbohydrates, lipids, and ATP, and in other systems, energy can be stored in chemical fuels such as hydrogen or methane.