no it is not
Yes, the calcium sulphate (CaSO4) is a chemical compound.
Compound.
Compound
A compound.
vanadium(I) sulphate, but as far as I am aware, this compound is unknown
No it is not. I am a geologist it is not.
No it is not it is a compound.
K2SO4
It is a compound of copper & sulfur
Magnesium sulfate is a chemical compound.
it is a compound
Iron sulfate is a compound, not an element. It is made up of iron (Fe) and sulfate (SO4) ions, which combine to form the compound FeSO4.