01Showing only what reacts
Split strong electrolytes (soluble ionic compounds, strong acids, strong bases) into ions. Cancel spectator ions that appear unchanged on both sides.
Keep solids, liquids, gases, and weak acids/bases as whole formulas.
02Notebook box
Always soluble: Na⁺, K⁺, NH₄⁺, NO₃⁻ salts.
Worked example: AgNO₃ + NaCl → Ag⁺(aq) + Cl⁻(aq) → AgCl(s). Na⁺, NO₃⁻ are spectators.