The net ionic equation for formation of an aqueous solution of NiI₂accompanied by evolution of C O₂gas via mixing solid NiCO₃and aqueous hydriodic acid is . A) NiCO₃(s) + 2HI (aq) -H₂O (l) + CO₂(g) + Ni²⁺(aq) + 2I^-(aq) B) NiCO₃(s) + 2HI (aq) - 2H₂O (l) + CO₂(g) + NiI₂(aq) C) NiCO₃(s) + 2H⁺(aq) -H₂O (l) + CO₂(g) + Ni²⁺(aq) D) NiCO₃(s) + I^-(aq) - 2H₂O (l) + CO₂(g) + Ni²⁺(aq) + HI (aq) E) 2NiCO₃(s) + HI (aq) - 2H₂O (l) + CO₂(g) + 2Ni²⁺(aq)

Question

Quizplus · Accepted Answer

The net ionic equation involves only the species that undergo a chemical change. Solid NiCO₃ reacts with H⁺ ions from HI to form CO₂ gas and Ni²⁺ ions in solution. The iodide ions (I⁻) are spectator ions and do not appear in the net ionic equation.

The Net Ionic Equation for Formation of an Aqueous Solution