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Electrochemical series

The electrochemical series helps to predict the outcome of an electrochemical reaction. This reaction is also known as a reduction-oxidation reaction, or redox reaction, and is why the series is synonymous with the term redox series for metals in particular (also see Corrosion).

A redox couple is specified between which the reaction takes place. During this time, electrons are transferred from one reaction partner to the other. Oxidation refers to the loss of electrons, while reduction refers to the gain of electrons.

When the redox series is specified, the electrons transferred and the standard potential of the redox couple are also listed in addition to the oxidised and reduced forms.