Final answer:
The products of the reaction between Ba(NO₃)₂(aq) and K₂SO₄(aq) are BaSO₄(s) as a precipitate and KNO₃(aq) in solution. The correct answer is D) BaSO₄(s) and KNO₃(aq).
Step-by-step explanation:
To predict the products of a reaction between Ba(NO₃)₂(aq) and K₂SO₄(aq), we should write a balanced chemical equation. When these two compounds react, they undergo a double displacement reaction, where the cations and anions switch places. The products we would expect from this reaction are BaSO₄(s) (barium sulfate) forming as a precipitate and KNO₃(aq) (potassium nitrate) remaining in solution:
Ba(NO₃)₂(aq) + K₂SO₄(aq) → BaSO₄(s) + 2 KNO₃(aq)
This is based on the solubility rules which state that sulfates are generally soluble except for those of barium, lead, calcium, strontium, and mercury. Therefore, barium sulfate is insoluble in water and precipitates out, while potassium nitrate is soluble and remains in solution. The correct answer to this question is D) BaSO₄(s) and KNO₃(aq).