How many of the solutions shown, when each is added to a separate sample of magnesium sulfate solution, give a white precipitate? HCl(aq) \quad NH$_3$(aq) \quad $(\text{NH}_4)_2\text{CO}_3$(aq) \quad $\text{Ba(NO}_3)_2$(aq)
- A$0$
- B$1$
- C$2$
- D$3$
Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry