3. Given the 2 charts determine the identity of the unknowns NHCOsNo reaction No

Question

3. Given the 2 charts determine the identity of the unknowns NHCOsNo reaction No reaction Yellow to No reaction No reaction No reaction No reaction Yellow to No reaction KOH HCI Heat NH)CO HCI Unknown A Heat No reaction reactionNo react No reaction No reaction No reaction No reaction Unknown D UnknowmE No reaction Yellow to orange Yellow to green No reaction I Unknown B Unknown C- Unknown D- Unknown E Unknown A Based on the information in the two charts, determine what each of the unknowns is: Unknown A Unknown B Unknown C Unknown D Unknown E 69

Explanation / Answer

1. CaF2 - Insoluble

2. NaMnO4 - Soluble

3. Ag(C2H3O2) - Soluble

4. Co(NO3)2 - Soluble

5.Hg2Cl2 - Soluble

6. Cu(NO2)2 - Soluble

7. AlPO4 - Insoluble

8. FeSO4 - Soluble

9. Bi(NO3)3 - Soluble

10. PbI2 - Partially soluble

Ba(OH)2 (aq) + Li2SO4 (aq)-------> BaSO4 (s) + 2 LiOH (aq)

Ba+2 + 2 OH- + 2 Li+ + SO4 2- ----------> BaSO4 + 2 Li+ + 2 OH-

Ba+2 + SO4 2- ----------> BaSO4

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