Product of this reasction?
1. Ag(NH3)2Cl + HCl?
2. AgOH + NaOH?
3. PbCl2 + HCl?
4. Pb(OH)2 + NaOH?
5. PbSO4 + (CH3COO)NH4?
6. Hg^2+ + HCl + H2S?
7. Cu^2+ + HCl + H2S?
8. Cu^2+ + KSCN?
9. Fe^2+ + NH4OH + NH4Cl + H2S?
10. Fe^2+ + NaOH?
11. Fe^2+ + K4Fe(CN)6?
12. Fe^2+ + K3Fe(CN)6?
13. Fe^3+ + NH4OH + NH4Cl + H2S?
10. Fe^3+ + NaOH?
11. Fe^3+ + K4Fe(CN)6?
12. Fe^3+ + K3Fe(CN)6?
13. Fe^3+ + KSCN?