What is the definition of oxidation and reduction in chemistry?

Answered on : 2024-01-24

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文字と画像で見る | 第34回酸化・還元と酸化数 | 化学基礎 - NHK

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酸化・還元の定義〜水素・酸素・電子の3パターン

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高校化学基礎 5分でわかる！酸化・還元と電子

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In chemistry, **oxidation** refers to a reaction where a substance loses electrons, gains oxygen, or loses hydrogen. On the other hand, **reduction** is a reaction where a substance gains electrons, loses oxygen, or gains hydrogen. These definitions are fundamental to understanding redox (oxidation-reduction) reactions in chemistry [1][2][3].

To summarize:

- **Oxidation**: Involves losing electrons, gaining oxygen, or losing hydrogen.

- **Reduction**: Involves gaining electrons, losing oxygen, or gaining hydrogen.

These definitions are crucial for understanding chemical reactions and electron transfer processes in various chemical systems.