Question

FeS₂➙SO₂➙S➙H₂S➝SO₂➙SO₃➝H₂SO₄➝BaSO₄➝SO₂➝NáHO₃

Answer 1

4FeS₂ + 11O₂ -> 2Fe₂O₃ + 8SO₂

SO₂ + 2H₂S ->2 S + 2H₂O

S + H₂ -> H₂S

2H₂S + 3O₂ -> 2H₂O + 2SO₂

2SO₂ + O₂ -> 2SO₃

SO₃ + H₂O -> H₂SO₄

BaO + H₂SO₄ -> BaSO₄ + H₂O

Answer 2

4FeS₂ + 11O₂ \(\rightarrow\) 2Fe₂O₃ + 8SO₂

SO₂ + 2H₂S \(\rightarrow\) 2S + 2H₂O

S + H₂\(\rightarrow\) H₂S

2H₂S + 3O₂ \(\rightarrow\) 2H₂O + 2SO₂

2SO₂ + O₂ \(\rightarrow\) 2SO₃

SO₃ + H₂O \(\rightarrow\) H₂SO₄

BaO + H₂SO₄ \(\rightarrow\) BaSO₄ + H₂O

Answer 3

SO2+NaOH->NaHSO3