Question

Why do copper vessels develop a greenish layer when exposed to moist air? Also write the equation.​

Answer 1

Answer:

copper vessels develop a greenish layer when exposed to moist and the cause copper is rusted when exposed to moist air reacts with water and oxygen present in the moist air and form a greenish layer of copper oxide

Answer 2

Answer:

Due to copper patina

Explanation:

Copper when exposed to air forms copper patina (CuCO3 + CuOH) composed of copper carbonate and copper hydroxide

Equation:

Cu + H2O + O2 = CuCO3 + CuOH