The formula for potassium sulfide is K2S.
The chemical formula for mercurous sulfide is Hg2S.
The molecular formula for Zinc Sulfide is ZnS.
There is copper (I) sulfide, with the formula Cu2S, and there is copper (II) sulfide with the formula CuS.
The chemical formula for cadmium sulfide is CdS.
The chemical formula of barium tetra-sulfide is BaS4.
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Formula for potassium sulfide is K2S.
The symbol for potassium is K.
The formula of silver sulfide is Ag2S.
The chemical formula of gold(III) sulfide is Au2S3.
The chemical formula for mercurous sulfide is Hg2S.
The formula for ammonium sulfide is (NH4)2S.
The formula for cobalt (II) sulfide is CoS.
Calcium sulfide is CaS. This is the empirical formula as well.
Copper(I) sulfide is Cu2S Copper(II) sulfide is CuS
Lead IV Sulfide is PbS2