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05/11/2020 6:17 pm
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What happens when
(a) ZnCO3 is heated in the absence of oxygen?
(b) a mixture of Cu2O and Cu2S is heated?
1 Answer
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05/11/2020 6:20 pm
(a) Zinc oxide(s) and CO2(g) are formed.
ZnCO3(s) + heat → ZnO(s) + CO2(g)
(b) Blister copper(s) and SO2(g) are formed.
2Cu2O(s) + Cu2S(s) + heat → 6Cu(s) + SO2(g)