Question

Complete and balance the molecular equation, including the phases, for the reaction of aqueous potassium sulfate, K2SO4 , and aqueous strontium iodide, SrI2 .

molecular equation: ?

Write the balanced net ionic equation, including the phases, for this reaction.

net ionic equation: ?

Answer 1

1)

Molecular equation is:

K2SO4 (aq) + SrI2 (aq) --> SrSO4 (s) + 2 KI (aq)

Answer:

K₂SO₄ (aq) + SrI₂ (aq) --> SrSO₄ (s) + 2 KI (aq)

2)

Total ionic equation is

Spectator ions should not be removed here. Spectator ions are part of total ionic equation

2 K+ (aq) + SO42- (aq) + Sr2+ (aq) + 2 I- (aq) --> SrSO4 (s) + 2 K+ (aq) + 2 I- (aq)

Spectator ions should be removed now. Spectator ions are not part of total ionic equation

After removing Spectator ions, net ionic equation is:

Sr2+ (aq) + SO42- (aq) --> SrSO4 (s)

Answer:

Sr²⁺ (aq) + SO₄^2- (aq) --> SrSO₄ (s)