Which of the following pairs of aqueous solutions will react to produce a precipitate? A)LiOH + Na₂S B)(NH₄)₂SO₄ + LiCl C)Sr(C₂H₃O₂)₂ + Na₂SO₄ D)KNO₃ + NaOH E)None of the above solution pairs will produce a precipitate.

Question

Quizplus · Accepted Answer

The reaction between strontium chloride (SrCl2) and sodium sulfate (Na2SO4) will produce a precipitate of strontium sulfate (SrSO4) according to the following equation:
SrCl2 + Na2SO4 → 2NaCl + SrSO4

A) LiOH and Na2S will not produce a precipitate.
B) The compound (NH4)2SO4 is ammonium sulfate which is soluble in water, and LiCl is also soluble in water, so no precipitate will form.
D) The reaction between potassium nitrate (KNO3) and sodium hydroxide (NaOH) will produce a soluble salt, potassium hydroxide (KOH), and sodium nitrate (NaNO3), which is also soluble in water, so no precipitate will form.
E) None of the other options produce a precipitate.

Which of the Following Pairs of Aqueous Solutions Will React