Oxidation-reduction reactions, also known as redox reactions, are an essential part of chemistry. These reactions involve the transfer of electrons between two or more compounds. Some synonyms for oxidation-reduction reactions include electron transfer reactions, redox processes, and redox chemistry. These terms are interchangeable and describe the same chemical reaction. Another synonym for the oxidation-reduction reaction is the electrochemical reaction. This term emphasizes the role of electric matter played in these reactions. Ultimately, no matter which term is used to describe this type of chemical reaction, it is vital to understand how electrons move between molecules and atoms.