Here's why:
* Making bonds: Chemical bonds form when atoms share or transfer electrons. This process *releases* energy, making it exothermic.
* Breaking bonds: To break a chemical bond, energy must be *absorbed*. This process is endothermic.
Therefore, energy is the driving force behind both the formation and breaking of chemical bonds.
Examples:
* Making bonds: When hydrogen and oxygen react to form water (H₂O), energy is released as heat and light.
* Breaking bonds: When you heat a piece of wood, the energy breaks the bonds holding the wood together, causing it to decompose.
Let me know if you'd like more details on specific types of chemical bonds!
