Question

Which mixture of aqueous reactants will form a precipitate?

NaNo3 & KOH
CuNO3 & LiCl
Ba3(PO4)2 & AgNO3
Rb2S & LiOH

Answer 1

use a solubility chart (google) and look at possible combinations that will be insoluble

Answer 2

I have a solutbility chart that I used, and I am pretty sure that the third choice is the correct one, but I wanted to make sure this was indeed true.

Answer 3

I know that Ag3PO4 (?) would be insoluble, which was my reason for thinking that it was the third choice.

Answer 4

Right?

Answer 5

yeah most phosphates are insoluble

Answer 6

Great, thanks so much ;)

Answer 7

no problem