Answer:
When chemical bonds are broken or formed, energy is either released or absorbed. The total amount of energy in the system remains constant, but it may be converted from one form to another.
Breaking a bond requires energy, and this energy is absorbed from the system. This process is called an endothermic reaction, and it requires an input of energy. For example, when the bond between two atoms in a molecule is broken, the energy required to break the bond is absorbed, and the molecule becomes unstable.
On the other hand, when a bond is formed, energy is released, and this process is called an exothermic reaction. For example, when two atoms combine to form a molecule, the energy released by the formation of the new bond is given off as heat or light. This release of energy causes the system to become more stable.
The amount of energy released or absorbed during a chemical reaction is determined by the difference in energy between the reactants and the products. If the products have a lower energy than the reactants, energy is released, and the reaction is exothermic. If the products have a higher energy than the reactants, energy is absorbed, and the reaction is endothermic.
In summary, when chemical bonds are broken or formed, energy is either absorbed or released, and this affects the stability of the system. The total amount of energy in the system remains constant, but it may be converted from one form to another