Question

S –Na2S –H2S– SO2–Na2SO3– BaSO3

Answer 1

Ответ:

Объяснение:

S+2Na=Na2S

Na2S+2H2O=2NaOH+H2S

2H2S+3O2=2SO2+2H2O

SO2+2NaOH = Na2SO3 +H2O

Na2SO3+BaCl2=BaSO3↓+2NaCl

Answer 2

Ответ:

S+H2=H2S

2H2S+3O2-->2H2O+2SO2

SO2+Na2O-->Na2SO3

Na2SO3+BaCl2-->BaSO3+2NaCl

BaSO3-->BaO+SO2