Question

What is the formula for copper ii carbonate?

Answer 1

`"CuCO"_3`

Explanation:

The formula of the carbonate anion: `"CO"_3^(2-)`

The charge of the carbonate anion: `2-`

The charge of copper(II): `2+`

This means that the copper `2+` ion and the carbonate ion can balance out as a compound.

Therefore, the balanced formula is

`["Cu"^(2+)] ["CO"_3^(2-)] = "CuCO"_3`