Ответ:
1) S + O₂ → SO₂
2) SO₂ + H₂O ⇄ H₂SO₃3) H₂SO₃ + Na₂CO₃ → Na₂SO₃ + CO₂↑ + H₂O
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Ответ:
1) S + O₂ → SO₂
2) SO₂ + H₂O ⇄ H₂SO₃
3) H₂SO₃ + Na₂CO₃ → Na₂SO₃ + CO₂↑ + H₂O