What are Oxidation and Reduction?

Oxidation and Reduction forms the basis of Redox reactions - where electrons are exchanged between reactants to form new products.

Oxidation is the LOSS of electrons. Eg: Fe2+ - e- --> Fe3+

Reduction is the GAIN of electrons. Eg: Cu2+ + e- --> Cu+

By losing or gaining electrons, ions change oxidation states giving them variable chemical properties.

CL

Related Chemistry GCSE answers

All answers ▸

Explain how the properties and structure of solid salt change when it dissolves in water


How can an explosion be explained by the different ways molecules are packed together in solids, liquids and gases?


What is the difference between an Atom and an Ion?


Explain how the structure of metals allow them to form metallic bonds.