Question

explain oxidation of copper oxide by an experiment​

Answer 1

Answer:

Copper Oxidation

The most commonly seen chemical reaction that occurs to copper includes oxidation. When copper gets exposed to air, it results in the copper's surface darkening. ... This is like its reaction to prolonged contact with your skin. The formula for copper oxidation: 2 Cu + O2 → Cu2O.

Explanation:

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Answer 2

Answer:

when copper powder get exposed to air, it results in the copper's surface darkening i,e oxygen ( from the atmosphere) is added to copper and copper(ll)oxide is formed giving black colour substance . here oxidation takes place .

2Cu + O2 - 2CuO

if hydrogen gas is passed over heated material (Cuo) the black coating on the surface turns brown as reverse reaction takes place and copper is obtained . here reduction takes place .

CuO + H2 - Cu + H2O