Work out the following using chemical equation.
In moist air, copper corrodes to produce a green layer on the surface?

Explanation

To work out the corrosion of copper in moist air and the formation of a green layer on its surface, we can represent the chemical reactions involved. The green layer is primarily due to the formation of basic copper carbonate.

### Step-by-Step Solution:

1. **Identify the Reactants**:
Copper (Cu) reacts with moisture (H₂O) and carbon dioxide (CO₂) present in the moist air.

2. **Write the Initial Reaction**:
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