As 'hg2no32' it means nothing. !!!!
However, I think you mean
Hg2(NO3)2 , which is Mercury(I) nitrate ; ( Mercurous nitrate).
NB ; When writing chemical formula, single letter elemental symbols are ALWAYS written as a CAPITAL letter. Two letter symbols are written , first letter is a capital letter and the second letter is small/lower case.
This is the recognised international IUPAC standard, and as shown on the Periodic Table.
Hence
Mercury(Hydragyrum(Hg)) is Hg , NOT 'hg'.
Nitrogen is 'N' , NOT 'n'
Oxygen is 'O' , NOT 'o'.
Also note the use of brackets to indicate two nitrate anions. As you have given it , it could be read as 'thirty two oxygens'.
Hg2(NO3)2 is the chemical formula of mercury(I) nitrate.
Hg2(NO3)2 (mercury(I) nitrate) is generally considered soluble in water. However, the solubility can be affected by factors such as temperature and the presence of other ions in solution. It's important to note that while it dissolves, mercury compounds can be toxic and should be handled with care.