Question

why does oxygen have three atoms in copper carbonate (CuC03), although the valency of copper is two

Answer 1

Explanation:

Basic copper carbonate is a chemical compound, more properly called copper(II) carbonate hydroxide. It is an ionic compound (a salt) consisting of the ions copper(II) Cu2+

, carbonate CO2−

3, and hydroxide OH

Answer 2

Answer:

Even though copper has valancy 2 it also depends on Carbon and coordination number...