It is Na2S
Formula: Na2C2O4
The formula for cesium sulphide is Cs2S.
The formula for lithium sulphide is Li2S.
The formula for Lead Sulfide (or Lead Sulphide) is either: PbS for Lead(II) Sulphide, or PbS2 for Lead(IV) Sulphide.
Na2CO3
The chemical formula of caesium sulphide is Cs2S.
Na2SO3.
The requested formula is NaHSO4.
Na3N
The formula is: Li2S the "2" is a subscript
Formula: CaS
The chemical formula for sodium sulfate is Na2SO4.