Redox and examples Reactions that involve a change in oxidisation takings be called oxidation- decrease reactions. An element is oxidized if the oxidation number has become more(prenominal) absolute in value. For example, in the comparability: the oxidation number of surface has changed from 0 to +2. The depot reduction describes the opposite process, in which the oxidation number becomes more minus in value. In the resembling equation, for example, the hydrogen is reduced. The oxidation number has changed from +1 to 0. If everything is counted through the complete equation, oxidation and reduction are equal and balance to 0.
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