K2SO4
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http://en.wikipedia.org/wiki/Potassium_sulfate
K
Sulphate SO4 2-
CuSO4
CuSO4
NiSO4
The chemical symbol for sodium sulfate is Na2SO4.
k2so4
Na2SO4 and H2O
Copper sulphate is blue, the melting point is 110 degrease and the chemical symbol is CuSO4.
The chemical formula (not symbol) of zinc oxide is ZnO.
The chemical symbol for Potassium Sulphate is K2SO4
The chemical formula for sulfuric acid (sulphate acid) is H2SO4 and for nitric acid it is HNO3.