Which of the following pairs of aqueous solutions will form a precipitate when mixed? A) Li₂CO₃ + NaI B) Li₂ SO₄ + KOH C) CaS + Na₂SO₄ D) None of these solution pairs will produce a precipitate. E) All of these solution pairs will produce a precipitate.

Question

Quizplus · Accepted Answer

CaS and Na2SO4 will react and precipitate out CaSO4 as an insoluble solid. A and B do not produce any insoluble products when mixed, and option D is incorrect because option C produces a precipitate. Option E is incorrect because not all of the pairs will produce a precipitate.

Which of the Following Pairs of Aqueous Solutions Will Form