oxidation and reduction always occur together

For example, the reaction.
Photo by: Giorgio Clementi, the term oxidation-reduction reaction actually refers to two chemical reactions that always occur at the same time: oxidation and reduction.
That's where the name oxidation came from.
Corrosion: An oxidation-reduction reaction in which a metal is oxidized and oxygen is reduced, usually in the presence of moisture.Redox and electron exchanges, for many years, chemists thought of oxidation and reduction as involving the element oxygen in some way or another.In this reaction, iron oxide (Fe 2 O 3 ) gives away its oxygen to carbon (C).In reactions such as these, oxidation occurs very rapidly and energy is released.The terminal at which reduction occurs is called the "cathode".Reducing agent: A chemical substance that takes on oxygen or gives up electrons to another substance.Redox image concours facebook reactions are among the most common and most important chemical reactions in everyday life.br / Also, for reduction to occur the electrons gained by the substance that is being reduced must be transferred from the atoms of ions of another substance.Because sodium loses electrons in this reaction, it is said to be oxidized.By looking at the above example, you can see that the following statements must always be true: An oxidizing agent (in this case, iron oxide) is always reduced.2PbO2 - 2PbO O2, in this reaction the lead atoms gain an electron (reduction) while the oxygen loses electrons (oxidation).Cu2(aq) 2e- - Cu(s).Corrosion, decay, and various biological processes are examples of oxidation that occurs so slowly that noticeable heat and light are not produced.Words to Know, combustion: An oxidation-reduction reaction that occurs so rapidly that noticeable heat and light are produced.The more general definition of redox reactions, then, involves the gain and loss of electrons rather than the gain and loss of oxygen.The original view of oxidation and reduction is that of adding or removing oxygen.Rust is the name given to the oxide of iron and, sometimes, the oxides of other metals.5 people found this useful, was this answer useful?The simpler definitions refer to reactions involving some form of oxygen.
Because of its ability to give away oxygen, iron oxide is called an oxidizing agent.

When a plant or animal dies, the organic compounds of which it is composed begin to react with oxygen.