Question

Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and hydrobromic acid are combined.

Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and acetic acid are combined.

Write a net ionic equation for the reaction that occurs when excess nitric acid (aq) and sodium carbonate (aq) are combined.
Write a net ionic equation for the reaction that occurs when chromium(II) sulfide and excess hydroiodic acid are combined.
Write a net ionic equation for the reaction that occurs when aqueous solutions of barium hydroxide and hydrobromic acid are combined.

Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrofluoric acid are combined.

Answer 1

1. NH₃ (aq)  + HBr (aq) NH₄Br (aq)

Net ionic equation : NH₃ (aq) + H⁺ (aq) NH₄⁺ (aq)

[ NH₃is weak electrolyte]

2.

NH₃(aq) + CH₃COOH CH₃COONH₄ (aq)

Net ionic equation :

NH₃(aq) + CH₃COOH (aq) CH₃COO^- (aq) + NH₄⁺ (aq)

[ Acetic acid and ammonia both are weak electrolyte]

3.

2HNO₃ (aq) + Na₂CO₃ (aq) NaNO₃ (aq)  + H₂O (l) + CO₂ (g)

Net ionic equation : 2H⁺ (aq) + CO₃^2- (aq)   H₂O (l) + CO₂(g)

4.

CrS (s) + 2HI (aq) CrI₂ (aq) + H₂S (aq)

Net ionic equation : CrS (s) Cr²⁺ (aq) + S^-2 (aq)

[ CrS is insoluble ]

5.

Ba(OH)₂ (aq) + 2HBr (aq) BaBr₂ (aq)  + 2 H₂O(l)

Net ionic equation : H⁺ (aq) + OH^- (aq) H₂O(l)

[ Barium hydroxide and HBr both are strong electrolyte] .

6.

NaOH (aq) + HF(aq)   NaF(aq) + H₂O

Net ionic equation : OH^- (aq) + HF (aq) F^- (aq) + H₂O (l)

[ HF is weak electrolyte]