Na₂O→ NaOH → Na₂CO₃ → Na₂SO₄.
Na₂O + H₂O → 2NaOH
2NaOH + H₂CO₃ → Na₂CO₃ + 2H₂O
H₂SO₄ + Na₂CO₃ → Na₂SO₄ + H₂O + CO₂↑
Na₂O→ NaOH → Na₂CO₃ → Na₂SO₄.
Na₂O + H₂O → 2NaOH
2NaOH + H₂CO₃ → Na₂CO₃ + 2H₂O
H₂SO₄ + Na₂CO₃ → Na₂SO₄ + H₂O + CO₂↑