Choose the correct answer:
Answer variants:
\(Ca_3(PO_4)_2\)
\(HgCl_2\)
\(Al(NO_3)_3\)
\(CaPO_4\)
\(FeSO_4\)
\(Fe_2S_3\)
\(CuBr_2\)
\(Mg(CH_3COO)_2\)
Write the molecular formulae for the following compounds:
 
i. Copper (II) bromide =
 
ii. Mercury (II) chloride =