The chemical formula for nickel* (II) sulfate is NiSO4.
*Note correct spelling.
Copper(II) sulfate has the formula CuSO4.
Copper(II) sulfate has the formula CuSO4.
Copper(II) sulfate has the formula CuSO4.
Copper(II) sulfate has the formula CuSO4.
PbSO4 is the chemical formula of lead(II) sulfate.
Lead(II) sulfate has the chemical formula PbSO4. Pb(IV) is not known.
There are two kinds of copper sulfate, even without considering hydrates. Cu(I) sulfate has the formula Cu2SO4 and Cu(II) sulfate has the formula CuSO4.
This is the chemical formula of iron(II) sulfate.
There are two kinds of iron sulfate: iron (II) sulfate has the formula FeSO4 and iron (III) sulfate has the formula Fe2(SO4)3.
CuSO4 is the chemical formula of copper(II) sulfate.
Lead has two oxidation states (+4 and +2). As a result, there are two compounds composed of lead and sulfate: lead(IV) sulfate, which is Pb(SO4)2, and lead(II) sulfate, which is PbSO4.
The formula for Iron(II) sulfate is FeSO4.