The Net Ionic Equation for Formation of an Aqueous Solution

Multiple Choice

The net ionic equation for formation of an aqueous solution of NiI₂ accompanied by evolution of CO₂ gas via mixing solid NiCO₃ and aqueous hydriodic acid is ________.

A) 2NiCO₃ (s) + HI (aq) → 2H₂O (l) + CO₂ (g) + 2Ni²⁺ (aq)
B) NiCO₃ (s) + I^- (aq) → 2H₂O (l) + CO₂ (g) + Ni²⁺ (aq) + HI (aq)
C) NiCO₃ (s) + 2H⁺ (aq) → H₂O (l) + CO₂ (g) + Ni²⁺ (aq)
D) NiCO₃ (s) + 2HI (aq) → 2H₂O (l) + CO₂ (g) + NiI₂ (aq)
E) NiCO₃ (s) + 2HI (aq) → H₂O (l) + CO₂ (g) + Ni²⁺ (aq) + 2I^- (aq)