SO3=H2S4=H2=H2SZnS==SO2

Question

SO3=H2S4=H2=H2SZnS==SO2

Answer 1

SO3 + H2O = H2SO4

H2SO4 + Zn = ZnSO4 + H2

H2 + S= H2S

H2S + ZnO = ZnS + H2O

2ZnS + 3O2 = 2ZnO + 2SO2