The following ionic equation (not balanced) represents the reaction that occurs when aqueous solutions of calcium chloride and sodium sulfide are combined. Identify the spectator ions in the equation, and then write the balanced net ionic equation for the reaction: Ca²+(aq) + 2Cl⁻(aq) + 2Na⁺(aq) + S²-(aq) -> CaS(s) + 2Na⁺(aq) + 2Cl⁻(aq)