[Baum]

In my "quals" class I am going to be given 7 unlabled solutions. I have to determine what each solution is from a given list by only mixing the solutions. I may not perform any other tests on the solutions. The solutions are: NaOH, AgNO3, NaBr, KI, NH4Cl, Na2SO4, Se(NO3)3. If you know the reactions between any of these chemicals please let me know. All help is greatly greatly appreciated. THANK YOU!

[Demotivator]

First, you must attempt the problem.
How do halides react with Ag+ ?