What single reagent could you add that would allow you to differentiate between the members of each pair of solid compounds below? Tell what happens to each substance when the reagent is added and write a balanced net ionic equation wherever a reaction occurs. You may use any reagent.
1. Hg2Cl2 and HgCl2
2. AgCl and PbCl2
3. AgNO3 and AgCl
4. AgCl and Hg2Cl2
5. Hg2(NO3)2 and Hg(NO3)2
6. NH4Cl and AgCl
7. PbI2 and KI