Question

The reaction of copper with air produces copper hydroxide and​

Answer 1

Explanation:

Equation 3 Cu + S → CuS

Over the years, CuO and CuS slowly reacts with carbon dioxide (CO2) and hydroxide ions (OH-) in water from the air to eventually form Cu2CO3(OH)2 (equation 4) , Cu3(CO3)2(OH)2 (equation 5) and Cu4SO4(OH)6 (equation 6), which constitute the patina.