An oxidizer, or oxidizing agent, is a substance that can accept electrons from another substance during a chemical reaction. This process often leads to the release of energy, making oxidizers essential in various applications, including combustion and respiration. Common examples of oxidizers include oxygen, chlorine, and hydrogen peroxide. In many industrial processes, oxidizers are used to enhance reactions, such as in the production of explosives or in wastewater treatment. They play a crucial role in ensuring that reactions proceed efficiently and safely, as they can help control the rate of combustion and reduce harmful emissions.