Write the balanced chemical equations for the following reactions : ( – InterviewSolution

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1.	Write the balanced chemical equations for the following reactions : (i) When copper is heated in air. (ii) When aluminium oxide reacts with sodium hydroxide.
Answer» Solution :(i) `2Cu + O_(2) rarr 2CuO` (ii) `4Al + 3O_(2) rarr 2Al_(2)O_(3)` (III) `Al_(2)O_(3) + 2NAOH rarr 2NaAlO_(2) + H_(2)O`

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