Chemical reactions take part in everyday life. Everything from decomposition to chemical reactions in our body, they all take place without our help. In a chemical reaction, some bonds are broken in the reactants in order to form bonds in the products, and atoms are rearranged. Chemical reactions always involve a change in energy. Energy is neither created nor destroyed; it is absorbed or released in chemical reactions. The reactions can be described as endothermic (energy is absorbed) or exothermic (energy is released). …
