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Oxidation and reduction by electrons

Oxidation = loss of electrons / increase in oxidation state; reduction = gain of electrons / decrease; the oxidizing agent is reduced and the reducing agent is oxidized.

The idea, in English

Oxidation = loss of electrons / increase in oxidation state; reduction = gain of electrons / decrease; the oxidizing agent is reduced and the reducing agent is oxidized.

Explain in Egyptian Arabic

الـ oxidation يعني خسارة electrons، فالـ oxidation state بيزيد؛ والـ reduction يعني كسب electrons، فالـ oxidation state بيقل. وخلّي بالك من اللفّة دي: الـ oxidizing agent هو نفسه اللي بيحصله reduction، والـ reducing agent هو نفسه اللي بيحصله oxidation.

Common misconceptions

  • Oxidation always needs oxygen.

    Not necessarily. Oxidation is loss of electrons, so the oxidation state increases. In Zn + CuSO4 → ZnSO4 + Cu zinc gains no oxygen, yet it loses electrons, so it is oxidized. Gaining oxygen is just one case of oxidation.

    Explain in Egyptian Arabic

    لأ، الـ oxidation معناه خسارة electrons، والـ oxygen مش شرط. في تفاعل الـ Zn مع الـ CuSO4 الـ Zn ماخدش أي oxygen، ومع كده خسر electrons، يبقى حصله oxidation. كسب الـ oxygen ده مجرد حالة واحدة من حالات الـ oxidation.

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