Transition Metals

Copper ppt reaction GCSE level

Cu 2+ (aq) + 2OH- (aq) to Cu(OH)2 (s)

Copper ppt reaction a level

[Cu(H2O)6]2+ (aq) + 2OH- (aq) to [Cu(H2O)4(OH)2] (s) + 2H2O (l)

Colour change for copper ppt reaction

Pale blue solution to pale blue ppt.

Copper ppt with ammonia equation

[Cu(H2O)4(OH)2] (s) + 4NH3 to [Cu(NH3)4(H2O)2] 2+ (aq) + 2OH- (aq)

Name of product for copper ppt and ammonia

Tetraaminediaquacopper (ii)

Colour of Tetraaminediaquacopper (ii)

Deep blue solution

Iron ii ppt reaction GCSE

Fe 2+ (aq) + 2OH- (aq) to Fe(OH)2 (s)

Iron ii ppt reaction A level

[Fe(H2O)6]2+ (aq) + 2OH- (aq) to [Fe(H2O)4(OH)2] (s) + 2H2O (l)

Colour change of hexaaquairon ii to iron ii ppt.

Pale green solution to dirty grey green ppt.

Iron iii ppt reaction GCSE

Fe 3+ (aq) + 3OH- (aq) to Fe(OH)3 (s)

Iron iii ppt reaction A level

[Fe(H2O)6]3+ (aq) + 3OH- (aq) to [Fe(H2O)3(OH)3] (s) + 3H2O (l)

Colour change for iron iii ppt reaction

Yellow solution to brown ppt.

Cobalt ppt reaction GCSE

Co 2+ (aq) + 2OH- (aq) to Co(OH)2 (s)

Cobalt ppt reaction A level

[Co(H2O)6]2+ (aq) + 2OH- (aq) to [Co(H2O)4(OH)2] (s) + 2H2O (l)

Cobalt colour change for ppt reaction

Pale pink solution to blue ppt.

Cobalt reaction with ammonia

[Co(H2O)4(OH)2] (s) + 6NH3 to [Co(NH3)6]2+ (aq) + 4H2O (l) + 2OH- (aq)

Colour of cobalt ammonia complex ion

Yellow solution

Chromium ppt reaction GCSE

Cr 3+ (aq) + 3OH- (aq) to Cr(OH)3 (s)

Chromium ppt reaction A level

[Cr(H2O)6]3+ (aq) + 3OH- (aq) to [Cr(H2O)3(OH)3] (s) + 3H2O (l)

Colour change of chromium solution to ppt

Green solution to green ppt

Chromium reaction with sodium hydroxide

[Cr(H2O)3(OH)3] (s) + 3OH- (aq) to [Cr(OH)6]3- (aq) + 3H2O (l)

Colour of chromium iii complex with sodium hydroxide

Dark green solution

Chromium reaction with ammonia

[Cr(H2O)3(OH)3] (s) + 6NH3 (aq) to [Cr(NH3)6]3+ (aq) + 3H2O (l) + 3OH- (aq)

Colour of chromium complex with ammonia

Violet solution

Manganese ppt reaction GCSE

Mn 2+ (aq) + 2OH- (aq) to Mn(OH)2 (s)

Manganese ppt reaction A level

[Mn(H2O)6]2+ (aq) + 2OH- (aq) to [Mn(H2O)4(OH)2] (s) + 2H2O (l)

Colour change for manganese ppt

Pale pink solution to pale brown/off white ppt