Question

Topic: Preparation of the soluble salt : ZnSO4

Question
1) Why was HCl and BaCl2 solution added to the solution containing the salt ZnSO4 and distilled water?
2) At the end of the reaction in 1) a milky substance was formed. What did this substance indicated?
Thanks! any help is appreciated because at this point, i'm so confused!

Answer 1

1) a double displacement reaction will occur.
2) The milky substance is the ZnCl2(s) precipitate. Any +2 cations I know are typically insoluble in water.

I hope this helped!

Answer 2

Thanks! one more thing...what exactly is a double displacement reaction?

Answer 3

AX + BY --> AY + BX

A and B are the cations
X and Y are the anions

Answer 4

The cations trade their anions

Answer 5

oh ok thank you! ^_^

Answer 6

your Welomeeeeeeeeee