Which of the following pairs of aqueous solutions will form a precipitate when mixed? A) NH₄NO₃ + Li₂CO₃ B) Hg₂(NO₃)₂ + KBr C) KI + Li₃PO₄ D) AgC₂H₃O₂ + Cu(NO₃)₂ E) None of the above solution pairs will produce a precipitate.

Question

Quizplus · Accepted Answer

When KBr and Hg(NO3)2 are mixed, no reaction occurs because both compounds are soluble in water. However, when KBr and HgS are mixed, a reaction occurs because HgS is insoluble in water and forms a precipitate. Therefore, option B is the correct answer.

Which of the Following Pairs of Aqueous Solutions Will Form