Which of the following pairs of aqueous solutions will form a precipitate when mixed? A) HCl + LiOH B) Li₂S + HCl C) K₂CO₃ + HNO₃ D) MgCl₂ + KOH E) All of these solution pairs will produce a precipitate.

Question

Quizplus · Accepted Answer

MgCl2 and KOH will react to form Mg(OH)2, which is a precipitate. The other options will not produce a precipitate. Option A will result in a neutralization reaction, producing water as the only product. Option B involves the reaction between a sulfide and a strong acid, which will result in the formation of hydrogen sulfide gas, not a precipitate. Option C involves the reaction between a carbonate and an acid, which will result in the formation of carbon dioxide gas, not a precipitate.

Which of the Following Pairs of Aqueous Solutions Will Form