Ozone reactions refer to chemical processes that involve ozone, a highly reactive form of oxygen. Ozone is formed when two atoms of oxygen are combined and has a characteristic smell and can be found in nature during springtime after thunderstorms. It is also used for water treatment and air purification due to its ability to break down pollutants. The phrase "ozone reactions" typically refers to the various chemical reactions that occur when ozone interacts with other substances, such as organic compounds or inorganic materials. These reactions can be either exothermic (releasing heat) or endothermic (absorbing heat), and they often involve the breaking down of complex molecules into simpler forms through oxidation processes.