Identifying cations and anions using precipitation reactions

[surahyot]

Can someone help with these questions:

a)Silver nitrate is added to a solution and a precipitate forms. This precipitate dissolves when concentrated ammonia is added. What anion was present in the original solution?
b)When dilute hydrochloric acid is added to a solution, a gas is evolved. If this gas is passed through a solution containing calcium hydroxide, a white precipitate forms. What anion was present in the original solution?
c)You are provided an aqueous solution which is blue. Addition of dilute hydrochloric acid produces a precipitate. The precipitate dissolves when the solution is heated to boiling. What two cations were in the original solution?

Thanks.

 

[garytse86]

surely you would get a table of anions and colour precipitate, with whether it dissolves completely in conc. ammonia.

 

[surahyot]

No, these questions we have to answer b4 going to the lab. So can someone give a hint on how to answer them?
THanks.

 

[rockson61]

I hope u got the sheet which u have to mugup ... lol and giv 1/2 hr daily 2 study tht ...hope it helps !

 

[alxm]

I hope u got the sheet which u have to mugup ... lol and giv 1/2 hr daily 2 study tht ...hope it helps !

First post? So you apparently created an account just to write a unintelligible response to a post that's from five years ago?