HgCl is the empirical formula of mercury I (mercurous) chloride, for which the full chemical formula is Hg2Cl2
Mercury (II) chloride is soluble, but Mercury (I) (mercurous) chloride is insoluble. The formula of the first compound is HgCl2, and mercurous chloride is Hg2Cl2. Also, lead chloride (PbCl2) and Silver chloride (AgCl) is insoluble. All other chloride solutions are soluble.
hg2br2
HgNO3: mercurous nitrate is the earlier name for mercury (I) nitrate.
(Hg2(ClO4)2)
HgCl is the empirical formula of mercury I (mercurous) chloride, for which the full chemical formula is Hg2Cl2
The ratio is 1:1. The formula is Mg2Cl2
Mercury (II) chloride is soluble, but Mercury (I) (mercurous) chloride is insoluble. The formula of the first compound is HgCl2, and mercurous chloride is Hg2Cl2. Also, lead chloride (PbCl2) and Silver chloride (AgCl) is insoluble. All other chloride solutions are soluble.
A single mercurous ion has two positive charges and contains two mercury atoms and therefore has the formula Hg2+2. This cation requires two chloride anions, each which has a single negative charge, for the electroneutrality required in a compound between them, resulting in the formula given.
The formula for mercurous peroxide is Hg2O2.
Hg2S is mercurous sulfide.
Hg3PO4 is the chemical formula for mercurous phosphate.
hg2br2
HgNO3: mercurous nitrate is the earlier name for mercury (I) nitrate.
Hg2CO3
Hg2F2
Hg(ClO3)2