Total Ionic Equation: Part 1: In the reaction in part one, determine how each substance appears in the reaction. For example, does the substance appear as dissociated ions? Do the ions remain together? Rewrite the equation with everything written as they appear in the reaction. How many total UNIQUE substances are in your equation. For example: Na + (aq) + Cl – (aq) + Ag + (aq) + NO 3 – (aq) → Na + (aq) + NO 3 – (aq) + AgCl (s) This reaction has 7 unique substances.