H2SO4 --- SO2 --- S --- ZnS --- ZnO --- ZnCl2

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The given chemical reactions are:

H2SO4 (sulfuric acid) decomposes to form SO2 (sulfur dioxide) and water (H2O):
H2SO4 -> SO2 + H2O

SO2 (sulfur dioxide) reacts with ZnS (zinc sulfide) to form S (sulfur) and ZnO (zinc oxide):
SO2 + ZnS -> S + ZnO

ZnO (zinc oxide) reacts with HCl (hydrochloric acid) to form ZnCl2 (zinc chloride) and water (H2O):
ZnO + 2HCl -> ZnCl2 + H2O

Overall reaction:
H2SO4 + ZnS + 2HCl -> SO2 + S + ZnCl2 + 2H2O

Therefore, the complete reaction pathway is as follows:
H2SO4 -> SO2 + H2O
SO2 + ZnS -> S + ZnO
ZnO + 2HCl -> ZnCl2 + H2O

The final products of this reaction pathway are S (sulfur) and ZnCl2 (zinc chloride).