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The chemical symbol (not formula) of mercury is Hg.
If you think to mercury nitride the chemical formula is Hg3N2.
The formula of mercury(I) borate is Hg3BO3.
The chemical formula of mercury(II) nitrate is Hg(NO3)2.
The chemical formula for mercury II sulfide is HgS.
The chemical formula for mercury 1 carbide is Hg2C.
The chemical formula for mercury phosphate is Hg3(PO4)2.
It is HgSMercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur.It is represented by the chemical formula HgS.It is virtually insoluble in water.
Mercury(I) iodide (HgI2) is the chemical formula for solid mercury iodide.
The chemical formula for Mercury II oxide is HgO.
The chemical formula for mercury(II) oxide is HgO.
The chemical formula for Mercury II Carbonate is HgCO3.