Question

A reddish brown metal A when exposed to moist air becomes green layer B. When a is heated at different temperatures im tje presense of oxygen, it forms 2 types of oxides C (black) and D (red). identify A, B, C, D and write the balanced equations.​

Answer 1

Answer:

Explanation:

A is copper

B is copper carbonate

C is copper oxide

But I don't know the last one

Answer 2

A= Cu,

B= CuCO 3

C= CuO

D= Cu2O