Question

Схема превращений и уравнения реакций

Answer 1

S(-2)-->S(0)-->S(+4)-->S(+6)-->S(+4)-->S(0)-->S(-2)-->S(+4)

H2S⇒S⇒SO2⇒SO3⇒H2SO4⇒SO2⇒S⇒H2S⇒SO2

1)2H2S+SO2=3S+2H2O

2) S+O2=SO2

3)2SO2+O2=2SO3

4)SO3+H2O=H2SO4

5)2H2SO4(k)+Mg=MgSO4+SO2+2H2O

6)SO2+2H2S=3S+2H2O

7)S+H2=H2S

8)2H2S+3O2=2SO2+2H2O