Oxidation and Reduction (Redox) Reactions An oxidation is a chemical process in which an atom or molecule gains electrons, while an atom or molecule los...
Oxidation and Reduction (Redox) Reactions
An oxidation is a chemical process in which an atom or molecule gains electrons, while an atom or molecule loses electrons. A reduction is a chemical process in which an atom or molecule loses electrons, while an atom or molecule gains electrons.
Oxidation and reduction are the two main types of chemical reactions that take place in the universe. These reactions are responsible for the cycling of elements, the formation of new substances, and the breakdown of old ones.
In an oxidation-reduction reaction, the atoms of the reactants combine to form new products. For example, when iron reacts with sulfur, the iron atoms oxidize to form iron(II) ions, while the sulfur atoms reduce to form sulfur dioxide.
Oxidation-reduction reactions can be used to balance chemical equations and to predict the products of a reaction. For example, the following balanced chemical equation represents the oxidation of hydrogen gas to form water:
In this reaction, the hydrogen atoms lose electrons to the oxygen atoms, while the oxygen atoms gain electrons from the hydrogen atoms.
Oxidation-reduction reactions are an important part of the chemistry of living things. They are responsible for the production of energy in cells and for the breakdown of waste products