5. Identify the substances that are oxsdised and the substance that we reduced in the following
reactions:
1) Na(s)+O2=2Na2O
2) CuO(s)+H2(g)=Cu(s)+H2O(l)
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(i)The substance oxidised is sodium and the substance reduced is oxygen gas. (ii) The substance oxidised is Hydrogen gas and the substance reduced is copper oxide.
Explanation:
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