1. Precipitation equation
Chemistry Identify Ions AS 91162
Ionic Equations
Cations
ion
Precipitation equation
precipitate
Complex ion equation
NH4+
No equation
No ppt
Na+
Mg+
Mg2+(aq) + 2OH- (aq) → Mg(OH)2(ppt)
Mg(OH)2(ppt)
Ag+
New
Ag+(aq) + OH-(aq) → AgOH(ppt)
Ag+(aq) + OH-(aq) → AgOH (ppt)
AgOH(ppt)
Ag+(aq) + 2NH3(aq) → [Ag(NH3)2]+(aq)
Fe2+
Fe2+(aq) + 2OH-(aq) → Fe(OH)2(ppt)
Fe(OH)2(ppt)
Fe3+
Fe3+(aq) + 3OH-(aq) → Fe(OH)3(ppt)
Fe(OH)3(ppt)
Fe3+(aq) + SCN-(aq) → [FeSCN]2+(aq)
Cu2+
new
Cu2+(aq) + 2OH-(aq) → Cu(OH)2(ppt)
Cu(OH)2(ppt)
Cu2+(aq) + 4NH3(aq) → [Cu(NH3)4]2+(aq)
Al3+
Al3+(aq) + 3OH-(aq) → Al(OH)3(ppt)
Al(OH)3(ppt)
Al3+(aq) + 4OH-(aq) → [Al(OH)4]-(aq)
Pb2+
Pb2+(aq) + 2OH-(aq) → Pb(OH)2(ppt)
Pb2+(aq) + SO42-(aq) → PbSO4(ppt)
Pb(OH)2(ppt)
PbSO4(ppt)
Pb2+(aq) + 4OH-(aq) → [Pb(OH)4]2-(aq)
Zn2+
Zn2+(aq) + 2OH-(aq) → Zn(OH)2(ppt)
Zn(OH)2(ppt)
Zn2+(aq) OH(aq)  [Zn(OH)4]2(aq)
Zn2+(aq) + 4NH3(aq) → [Zn(NH3)4]2+(aq
Ba2+
Ba2+(aq) + 2OH-(aq) → Ba(OH)2(ppt)
Ba2+(aq) + SO42-(aq) → BaSO4(ppt)
Ba(OH)2(ppt)
BaSO4(ppt)

2. Precipitation equation
Chemistry Identify Ions AS 91162
Ionic Equations
Anions
ion
Precipitation equation
precipitate
Complex ion equation
CO32-
No equation
No ppt
Cl-
Ag+(aq) + Cl-(aq) → AgCl(ppt)
AgCl(ppt)
Ag+(aq) + 2NH3(aq) → [Ag(NH3)2]+(aq) I-
Ag+(aq) + l-(aq) → AgI(ppt)
AgI(ppt)
SO42-
Ba+(aq) + SO42-(aq) → BaSO4(ppt)
BaSO4(ppt)
NO3-
OH-

3. Precipitation equation
Cations
ion
Precipitation equation
precipitate
Complex ion equation
NH4+
Na+
Mg+
Ag+
Fe2+
Fe3+
Cu2+
Al3+
Pb2+
Zn2+
Ba2+

4. Precipitation equation
Anions
ion
Precipitation equation
precipitate
Complex ion equation
CO32-
Cl- I-
SO42-
NO3-
OH-