Which of the following pairs of aqueous solutions will form a precipitate when mixed?

a) Na2 SO4 + KOH

b) CaS + Na2SO4

c) K2CO3 + NaCl

d) None of these solution pairs will produce a precipitate.

e) All of these solution pairs will produce a precipitate.

Question

Chemistry

Ciara Cochran

4 May, 01:08

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

a) Na2 SO4 + KOH

b) CaS + Na2SO4

c) K2CO3 + NaCl

d) None of these solution pairs will produce a precipitate.

e) All of these solution pairs will produce a precipitate.

+1

Answers (1)

Know the Answer?

Carlee Kaiser · Answer 1

I think the correct answer from the choices listed above is option B. The reactants calcium sulfide and sodium sulfate will react and form a precipitate which is calcium sulfate since it is only slightly soluble in aqueous solution. Hope this answers the question.

Which of the following pairs of aqueous solutions will form a precipitate when mixed?a) Na2 SO4 + KOHb) CaS + Na2SO4c) K2CO3 + NaCld) None of these solution pairs will produce a precipitate.e) All of these solution pairs will produce a precipitate.

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

a) Na2 SO4 + KOH

b) CaS + Na2SO4

c) K2CO3 + NaCl

d) None of these solution pairs will produce a precipitate.

e) All of these solution pairs will produce a precipitate.