You know the solution forms a precipitate when?
(A) when it changes color
(B) when you can’t see through it
(C) because it bubbles
(D) you have stirred it for more than 5 minutes
(E) the solution thickens
2 answers
solutions are transparent, precipates do not dissolve, cloud the solution, and eventually settle at the bottom.
so is it when you can't see through it or when the solution thickens?