1. AgNO₃ + HCl = AgCI↓ + HNO₃
Ag⁺ + NO₃⁻ + H⁺ + Cl⁻ = AgCI↓ + H⁺ + NO₃⁻
Ag⁺ + Cl⁻ = AgCI↓
2. NaOH + HCl= NaCI + H₂O
Na⁺ + OH⁻ + H⁺ + Cl⁻= Na⁺ +CI⁻ + H₂O
OH⁻ + H⁺= H₂O
3. Ba(NO₃)₂ + H₂SO₄ = BaSO₄↓ + 2HNO₃
Ba²⁺ + 2NO₃⁻ + 2H⁺ + SO₄²⁻ = BaSO₄↓ + 2H⁺ + 2NO₃⁻
Ba²⁺ + SO₄²⁻ = BaSO₄↓
4. Al(NO₃)₃ + 3NaOH = AI(OH)₃↓ + 3NaNO₃
Al³⁺ + 3NO₃⁻ + 3Na⁺ + 3OH⁻ = AI(OH)₃↓ + 3Na⁺ + 3NO₃⁻
Al³⁺ + 3OH⁻ = AI(OH)₃↓
A) 2 H⁺+OH⁻= H₂O
Б) 1 Ag⁺+Cl= AgCl
B) 4 Al³⁺+3OH⁻= Al(OH)₃
Д) 3 Ba²⁺+SO₄²⁻= BaSO₄