Question

Write the molecular formulae of all the compounds that can be formed by the combination of the following ions: `Cu^(2+), Na^(+), Fe^(3+), C^(-),SO_(4)^(2-)`.

Answer 1

In this case, the compounds can be formed by the combination of cations and anions. Therefore, the molecule. formulae of different compounds are:
`CuCl_(2), CuSO_(4), NaCl, Na_(20SO_(4)), FeCl_(3), Fe((SO)_(4))_(3)`.