The Net Ionic Equation for Formation of an Aqueous Solution

question 6

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)

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Definitions:

Reverse Reaction

A chemical reaction that occurs in the opposite direction of the forward reaction, converting the products back into the original reactants under certain conditions.

Equilibrium Reaction

A reversible chemical reaction where the rate of the forward reaction equals the rate of the backward reaction, resulting in stable concentrations of reactants and products.

Activation Energy Barrier

The minimum amount of energy required to initiate a chemical reaction.

Collision Theory

A theory that explains how chemical reactions occur and why rates of reactions vary for different reactions.