it is (SO4)-2
Ferrous sulphate, or iron (II) sulphate has the formula FeSO4.
The formula for ferrous sulphate is FeSO4.
Ferric sulphate, or iron (III) sulphate has the formula Fe2(SO4)3.
The Chemical Formula for Nickel Sulphate is NiSO4.
The chemical formula of ferrous sulphate is FeSO4.
The chemical formula for ferrous sulfate is FeSO4.
The molecular formula for Ammonium Sulphate is (NH4)2SO4.
Anhydrous sodium sulphate is Na2SO4
The formula of the sulphate ion is SO42-
Formula: MgSO4
Formula: FeSO4
the formula is CuSO4