Answer:
is this multiple choice just wondering
Explanation:
Characteristics of good solvent choice for the recrystallization.
1. Water has low solubility of benzoic acid at room temperature.
2. Cold water's low solubility of benzoic acid allows for the high concentration production of crystal. And these crystals could be easily soluble in hot water.
3. Water dissolves soluble impurities well at the room temperature.
Cu2S is the one that is going to form a precipitate and Cu(NO3)2 will not form a precipitate because it is soluble. It is a fact that those that are insoluble will form a precipitate. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.
Yes it’s a soluble because the carbonate should dissolve in any strong acid with much effervescence