Write down the reaction equation: S- HgS- SO2- Na2SO3- SO2- SO3- H2SO4

Let’s write down the reaction equations:
S + Hg = HgS – the reaction of the compound occurs when heated;
2HgS + 3O2 = 2SO2 + 2HgO – redox reaction;
SO2 + 2NaOH = Na2SO3 + H2O – ion exchange reaction;
Na2SO3 + 2HCl = SO2 + 2NaCl – ion exchange reaction;
2SO2 + O2 = 2SO3 – ORP;
SO3 + H2O = H2SO4 – compound reaction;
The process of solving the chain of transformations proves a genetic connection using the example of a simple substance, a nonmetal of sulfur, with other classes of compounds: salts, oxides, acids.