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Chemical Reactions and Equations
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03/09/2021 9:19 pm
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Explain the following in terms of gain or loss of oxygen with two examples of each:
(a) oxidation
(b) reduction
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03/09/2021 9:26 pm
(a) Oxidation involves the gain of oxygen by a substance in a chemical reaction.
Examples:
2Zn(s) + O2(g) + Heat ➝ 2ZnO(s)
2Ca(s) + O2(g) + Heat ➝ 2CaO(s)
(b) Reduction involves the loss of oxygen from a substance in a chemical reaction.
Examples
CuO(s) + H2(g) + Heat ➝ Cu(s) + H2O(l)
ZnO(s) + C(s) + Heat ➝ Zn(s) + CO(g)