Ответ:
1) Na⁺ + OH⁻ + H⁺ + Cl⁻ = Na⁺ + Cl⁻ + H₂O
2) Ba²⁺ + 2OH⁻ + 2H⁺ + SO₄²⁻ = BaSO₄↓ + 2H₂O
3) 2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + CO₂↑ + H₂O
4) 2Na⁺ + 2OH⁻ + Cu²⁺ + SO₄²⁻ = Cu(OH)₂↓ + 2Na⁺ + SO₄²⁻
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Ответ:
1) Na⁺ + OH⁻ + H⁺ + Cl⁻ = Na⁺ + Cl⁻ + H₂O
2) Ba²⁺ + 2OH⁻ + 2H⁺ + SO₄²⁻ = BaSO₄↓ + 2H₂O
3) 2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + CO₂↑ + H₂O
4) 2Na⁺ + 2OH⁻ + Cu²⁺ + SO₄²⁻ = Cu(OH)₂↓ + 2Na⁺ + SO₄²⁻