Odpowiedź:
1. Na₂O + H₂SO₄ → Na₂SO₄ + H₂O
2. Na₂SO₄+ Ba(OH)₂ → BaSO₄ + 2 NaOH
3. Na₂O + H₂O → 2 NaOH
4. 2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O
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Odpowiedź:
1. Na₂O + H₂SO₄ → Na₂SO₄ + H₂O
2. Na₂SO₄+ Ba(OH)₂ → BaSO₄ + 2 NaOH
3. Na₂O + H₂O → 2 NaOH
4. 2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O