CHEMISTRY · Subjective · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
Consider the aqueous reaction
4 NH₃(aq) + Cu²⁺(aq) + SO₄²⁻(aq) → [Cu(NH₃)₄]²⁺(aq) + SO₄²⁻(aq).
Identify the spectator ion(s) and briefly explain, in one sentence, why Cu²⁺ is not classified as a spectator ion in this process.