1.4Al⁰ + 3O₂⁰ = 2Al₂⁺³O₃⁻²Al⁰-3e⁻ = Al⁺³ | 4 восстановительO₂⁰ + 4e⁻ = 2O⁻² | 3 окислительAl2O3 + 6HCl = 2AlCl3 + 3H2OAl2O3 + 6H⁺+6Cl⁻ = 2Al⁺³ + 6Cl⁻ + 3H2OAl2O3 + 6H⁺ = 2Al⁺³ + 3H2OAlCl3 + 3NaOH = Al(OH)3↓ + 3NaClAl⁺³ + 3Cl⁻ +3Na⁺ + 3OH⁻ = Al(OH)3↓ + 3Na⁺ + 3Cl⁻Al⁺³ + 3OH⁻ = Al(OH)3↓2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O2.3H2SO4 + Al2O3 = Al2(SO4)3 + 3H2O6H⁺ + 3SO₄²⁻ + Al2O3 = 2Al³⁺ + 3SO₄²⁻ + 3H2O6H⁺+Al2O3 = 2Al³⁺+3H2OZn(OH)2 + H2SO4 = ZnSO4 + 2H2OZn(OH)2 + 2H⁺+SO₄²⁻ = Zn²⁺ + SO₄²⁻ + 2H2OZn(OH)2 + 2H⁺ = Zn²⁺ + 2H2OK2CO3 + H2SO4 = K2SO4 + CO2 + H2O2K⁺+CO₃²⁻ + 2H⁺+SO₄²⁻ = 2K⁺+SO₄²⁻ + CO₂ + H₂OCO₃²⁻ + 2H⁺ = CO₂ + H2OZnSO4 + H2SO4 = Zn(HSO4)2 Zn²⁺ + SO₄²⁻ + 2H⁺+SO₄²⁻ = Zn²⁺ + 2HSO₄⁻2SO₄²⁻ + 2H⁺ = 2HSO₄⁻2NaOH + H2SO4 = Na2SO4 + 2H2O2Na⁺ + 2OH⁻ + 2H⁺+SO₄²⁻ = 2Na⁺+SO₄²⁻ + 2H2O2H⁺+2OH⁻ = 2H2OH⁺ + OH⁻ = H2OZn+H2SO4 = ZnSO4 + H2Zn + 2H⁺ + SO₄²⁻ = Zn²⁺ + SO₄²⁻ + H₂Zn + 2H⁺ = Zn²⁺ + H2Pb + H2SO4 = PbSO4 + H2Pb +2H⁺ + SO₄²⁻ = Pb²⁺ + SO₄²⁻ + H₂Pb + 2H⁺ = Pb²⁺ + H2