Ответ:
Объяснение:
a)
AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl
Al³⁺ + 3Cl⁻ + 3Na⁺ + 3OH⁻ = Al(OH)₃ + 3Na⁺ + 3Cl⁻
Al³⁺ + 3OH⁻ = Al(OH)₃
б)
K₂CO₃ + 2HNO₃ = 2KNO₃ + H₂O + CO₂
2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + H₂O + CO₂
CO₃²⁻ + 2H⁺ = H₂O + CO₂
в)
Ca(OH)₂ + 2HNO₃ = Ca(NO₃)₂ + 2H₂O
Ca²⁺ + 2OH⁻ + 2H⁺ + 2NO₃⁻ = Ca²⁺ + 2NO₃⁻ + 2H₂O
H⁺ + OH⁻ = H₂O
г)
2NaNO₃ + H₂SO₄ = Na₂SO₄ + 2HNO₃
2Na⁺ + 2NO₃⁻ + 2H⁺ + SO₄²⁻ = 2Na⁺ + SO₄²⁻ + 2H⁺ + 2NO₃⁻
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Verified answer
Ответ:
Объяснение:
a)
AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl
Al³⁺ + 3Cl⁻ + 3Na⁺ + 3OH⁻ = Al(OH)₃ + 3Na⁺ + 3Cl⁻
Al³⁺ + 3OH⁻ = Al(OH)₃
б)
K₂CO₃ + 2HNO₃ = 2KNO₃ + H₂O + CO₂
2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + H₂O + CO₂
CO₃²⁻ + 2H⁺ = H₂O + CO₂
в)
Ca(OH)₂ + 2HNO₃ = Ca(NO₃)₂ + 2H₂O
Ca²⁺ + 2OH⁻ + 2H⁺ + 2NO₃⁻ = Ca²⁺ + 2NO₃⁻ + 2H₂O
H⁺ + OH⁻ = H₂O
г)
2NaNO₃ + H₂SO₄ = Na₂SO₄ + 2HNO₃
2Na⁺ + 2NO₃⁻ + 2H⁺ + SO₄²⁻ = 2Na⁺ + SO₄²⁻ + 2H⁺ + 2NO₃⁻
реакция не идет