CuSO4+4NH3？ H2O=[Cu(NH3)4]SO4+4H2O precipitates first and then dissolves. Blue turns into deep blue.

[Cu (NH3) 4] SO4+bacl2 = baso4 ↓+[Cu (NH3) 4] Cl2 white precipitate.

[Cu (NH3) 4] SO4+2NaOH = Cu (OH) 2↓+Na2SO4+4NH3 blue precipitate.

NH4Fe (SO4) 2+2backl2 = NH4Cl+FeCl3+2baso4 ↓ white precipitate.

2nh4fe (SO4) 2+6kscn = (NH4) 2so4+Fe (SCN) 3+3k2so4 blood red.

NH4Fe (SO4) 2+4 NaOH = Fe (OH) 3 ↓+2Na2SO4+NH3 H2O reddish brown precipitate.

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I hope it helps you, O(∩_∩)O~