What is Reduction? Definition, Meaning & Example
A chemical reaction in which a substance gains electrons or loses oxygen, often using energy.
TL;DR: A chemical reaction in which a substance gains electrons or loses oxygen, often using energy.
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Reduction: A chemical reaction in which a substance gains electrons or loses oxygen, often using energy.
Explanation
Reduction is a redox reaction where oxidation states decrease. It involves gaining electrons or removing oxygen. Reduction is always paired with oxidation.
Example
When copper oxide is heated with carbon, the carbon reduces the copper oxide to copper metal by removing the oxygen.
Frequently Asked Questions
Why is it called reduction if electrons are gained?
The term comes from the historical focus on oxygen loss. When oxygen is removed, the mass is reduced.
What is a redox reaction?
A redox reaction is a reaction where both oxidation and reduction occur simultaneously between two reactants.
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