Chemistry, asked by nehaswaran, 9 months ago

what happened when
1. ZnCO3 is heated in the absence of oxygen?
2. a mixture of CuO and CuS is heated?

Answers

Answered by hariomugalegmailcom

Explanation:

(a) When zinc carbonate is heated in the absence of oxygen, zinc oxide and carbon dioxide are produced. ... When this ore is heated, zinc oxide is formed along with carbon dioxide. ZnCO3 → ZnO + CO2. (b) When a mixture of copper oxide and copper sulphide is heated, pure copper is obtained.

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