Составте уровнения реакций: 1)ZnS→H2S→S→H2S→SO2 2) H2→H2S→SO2→NaHSO3
1. Zn + H2S = ZnS + H2 Zn + H2 = H2S + ZnH2 H2S + Br2 = 2HBr + S H2 + S = H2S O3 + H2S = SO2 + H2O 2.S+H2=H2S H2S+3O2=2H2O+2SO2 SO2+NaOH=NaHSO3