Question

14. What happens when
• (a) ZnCo3 is heated in the absence of oxygen?
(b) a mixture of CuO and CuS is heated?​

Answer 1

Answer:

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.

Answer 2

Answer:

Explanation:

(a) ZnO (s) and CO2(g) are formed.

ZnCO3 →ZnO + CO2

(b) Cu(s) and Sulphur dioxide will be formed.

2Cu2O + Cu2S → 6Cu + SO2

Hope it helps