K₂CO₃ = 2K⁺ + CO₃²⁻ Ca(OH)₂ = CaOH⁺ + OH⁻\ CaOH⁺ = Ca²⁺ + OH⁻ (NH₄)₃PO₄ = 3NH₄⁺ + PO₄³⁻ HBr = H⁺ + Br⁻ H₂CO₃ = H⁺ + HCO₃⁻\ HCO₃⁻ = H⁺ + CO₃²⁻ Na₂SiO₃ = 2Na⁺ + SiO₃²⁻ Na₂S = 2Na⁺ + S²⁻