Identify all of the spectator ions in the precipitation reaction below.
Ca²⁺(aq) + 2Br−(aq) + 2Li⁺(aq) + CO₃²⁻(aq) → CaCO₃(s) + 2Li⁺(aq) + 2Br−(aq)

Question

Identify all of the spectator ions in the precipitation reaction below. Ca²⁺(aq)+ 2Br−(aq)+ 2Li⁺(aq)+ CO₃²⁻(aq)→ CaCO₃(s)+ 2Li⁺(aq)+ 2Br−(aq)

Quizplus · Accepted Answer

Spectator ions are ions that do not participate in the chemical reaction and remain in solution. In this reaction, CaS and COS precipitate and are not spectator ions. Therefore, choices A and D are incorrect. The anions and ^{− combine with Ca and Li cations respectively to form precipitates, so they are not spectator ions. Therefore, choice E is incorrect. The only remaining ions are Br− and Li⁺, which do not react with each other or the precipitates, and thus are spectator ions. Therefore, choice C is the best answer.}

Identify All of the Spectator Ions in the Precipitation Reaction