Question

Осуществите превращения:
S -> H2S -> SO2 -> K2SO3

Answer 1

3S+2H2O=2H2S+SO2
2H2S+3O2=2SO2+2H2O
2KOH+SO2=K2SO3+H2O

Answer 2

H2+S=H2S 2H2S+3O2=2H2O +2SO2 SO2+K2O=K2SO3