Question

fes-x1-so2-na2so3-so2
СРОЧНО!!!!!!!!!!
ДАЮ 25 Б

Answer 1

FeS + H₂SO₄ = FeSO₄ + H₂S

2H₂S + 3O₂ = 2SO₂ + 2H₂O

SO₂ + 2NaOH = Na₂SO₃ + H₂O

Na₂SO₃ + 2HNO₃ (разб.) = 2NaNO₃ + SO₂ + H₂O