Net Ionic Reactions 2

Question 1: The net ionic equation for the reaction between aqueous solutions of HF and KOH is:

HF(aq) + KOH (aq) H₂O (l) + K⁺(aq) + F^-1(aq)
HF(aq) + OH^-1 (aq)  H₂O (l) + F^-1(aq)
HF(aq) + K⁺ (aq) + OH^-1 (aq)  H₂O (l) + KF (s)
H+(aq) + OH^-1 (aq)  H₂O (l)

Question 2: Which of the following gives the balanced net ionic equation for the reaction that occurs when aqueous solutions of Li₂CO₃ and CaCl₂ are mixed ?

2Li⁺(aq) + CO₃^2- (aq) - Li₂CO₃(aq)
2Li⁺(aq) + 2Cl^-1 (aq) - 2 LiCl (aq)
Li⁺(aq) + Cl^-1(aq) — LiCl(s)
Ca²⁺(aq) + CO₃^2- (aq) - CaCO₃(s)
Li₂CO₃(aq) + CaCl₂(aq) — 2LiCl(aq) + CaCO₃(s)

Question 3: Which of the following gives the balanced net ionic equation for the reaction of aqueous NiCl₂ with Aluminum metal?

2Al³⁺(s) + 3Ni⁺¹(aq) — 2Al³⁺(aq) + 3Ni⁺¹(s)
2Al³⁺(s) + 3Ni (aq) — 2Al(aq) + 3Ni⁺¹(s)
2Al(s) + 3Ni⁺¹(aq) — 2Al³⁺(aq) + 3Ni(s)
2Al(s) + 6Cl^–(aq) — 2Al³⁺(aq) + 3Cl₂(g)

ALCO Admin Main August 19, 2021

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