2HCl + K₂SiO₃ = H₂SiO₃↓ + 2KCl2H⁺ + 2Cl⁻ + 2K⁺ + SiO₃²⁻ = H₂SiO₃↓ + 2K⁺ + 2Cl⁻2H⁺ + SiO₃²⁻ = H₂SiO₃↓ HCl + KOH = KCl + H₂OH⁺ + Cl⁻ + K⁺ + OH⁻ = K⁺ + Cl⁻ + H₂OH⁺ + OH⁻ = H₂OZnS + 2HCl = ZnCl₂ + H₂S↑ZnS + 2H⁺ + 2Cl⁻ = Zn²⁺ + 2Cl⁻ + H₂S↑ZnS + 2H⁺ = Zn²⁺ + H₂S↑2Al + 6HCl = 2AlCl₃ + 3H₂↑2Al⁰ + 6H⁺ + 6Cl⁻ = 2Al³⁺ + 6Cl⁻ + 3H₂⁰↑2Al⁰ + 6H⁺ = 2Al³⁺ + 3H₂⁰↑Al₂O₃ + 6HCl = 2AlCl₃ + 3H₂OAl₂O₃ + 6H⁺ + 6Cl⁻ = 2Al³⁺ + 6Cl⁻ + 3H₂OAl₂O₃ + 6H⁺ = 2Al³⁺ + 3H₂O2/FeSO₄ + Zn = ZnSO₄ + FeFe²⁺ + SO₄²⁻ + Zn⁰ = Zn²⁺ + SO₄²⁻ + Fe⁰Fe²⁺ + Zn⁰ = Zn²⁺ + Fe⁰FeSO₄ + 2NaOH = Fe(OH)₂↓ + Na₂SO₄Fe²⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ = Fe(OH)₂↓ + 2Na⁺ + SO₄²⁻Fe²⁺ + 2OH⁻ = Fe(OH)₂↓ FeSO₄ + K₂CO₃ = FeCO₃↓ + K₂SO₄Fe²⁺ + SO₄²⁻ + 2K⁺ + CO₃²⁻ = FeCO₃↓ + 2K⁺ + SO₄²⁻Fe²⁺ + CO₃²⁻ = FeCO₃↓