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Giving chemical equation answer the following:

(a) What happens when copper is heated in air?

(b) What happens when the product obtained in above reaction is heated in hydrogen?

Asked by Topperlearning User 18th March 2015, 8:53 AM
Answered by Expert
Answer:

(a) When copper is heated in air, it reacts with the oxygen of air to form a black compound copper oxide.

2Cu + O2 begin mathsize 12px style rightwards arrow with Heat on top end style 2CuO


(b) When copper oxide formed in above reaction is heated in hydrogen, then copper oxide is reduced and brown copper metal is obtained.

CuO + H2 begin mathsize 12px style rightwards arrow with Heat on top end style Cu + H2O

Answered by Expert 18th March 2015, 10:53 AM
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