Reactions of metal-aqua ions

What are the 5 transition metals we study that form metal aqua ions?

Which are 2+?

Which are 3+?

How many water ligands are attached to each of the central metal ions?

What are the 3 reagents we need to remember the reaction colours of?

What colour is the [Cu(H₂O)₆]²⁺ ion?

What colour is the [Cr(H₂O)₆]³⁺ ion?

What colour is the [Al(H₂O)₆]³⁺ ion?

What colour is the [Co(H₂O)₆]²⁺ ion?

What colour is the [Fe(H₂O)₆]³⁺ ion?

What colour is the [Fe(H₂O)₆] ²⁺ ion?

When the [Fe(H₂O)₆] ²⁺ ion is reacted with OH¯ or NH₃, what is formed? (Formula and physical appearance)

If the same ion ([Fe(H₂O)₆] ²⁺) is reacted with Na₂CO₃ the physical appearance is the same however the formula of the precipitate is different. What is this formula?

The [Fe(H₂O)₆]²⁺ reactions are different to the [Fe(H₂O)₆]³⁺ reactions. What colour precipitate is formed in all the reactions of the ³⁺ ion? (with Na₂CO₃, OH¯ and NH₃)

How many moles of [Fe(H₂O)₃(OH)₃] are made in the reactions of [Fe(H₂O)₆]³⁺ with OH- or NH₃?

How many are made in the reaction with Na₂CO₃?

What colour precipitate is made when [Co(H₂O)₆]²⁺ is reacted with Na₂CO₃?

What is the formula of this precipitate?

The same colour precipitate is formed when [Co(H₂O)₆]²⁺ is reacted with dilute ammonia and with OH-. What colour is this precipitate?

Is the formula of the precipitate the same?

What is the formula?

What colour solution is formed when [Co(H₂O)₆]²⁺ reacts with excess ammonia?

What is the formula of the complex ion which makes this solution appear straw coloured?

The [Al(H₂O)₆]³⁺ ion is colourless. In what reaction (with ammonia/hydroxide, excess ammonia, excess hydroxide or sodium carbonate) does the solution remain colourless?

What is the formula of the ion formed in this reaction?

The same colour precipitate is formed in the three other reactions. What colour is this?

For the reactions with ammonia/hydroxide, excess ammonia, and sodium carbonate the same white precipitate is made. What is the formula of this?

What is the only difference between the reactions of hydroxide/ammonia and the reaction of sodium carbonate?

What colour is the [Cr(H₂O)₆]³⁺ ion?

When it is reacted with excess ammonia, what colour does the solution go and what is the formula of the ion responsible for the appearance of this colour?

Out of the reactions of [Cr(H₂O)₆]³⁺ with
- hydroxide/ammonia
-excess hydroxide
-sodium carbonate
Which forms a green precipitate and which forms a green solution?

What is the formula of the green precipitate?

What is the formula of the green solution formed when the [Cr(H₂O)₆]³⁺ reacts with an excess of hydroxide?

The [Cu(H₂O)₆]²⁺ ion is ____

When the [Cu(H₂O)₆]²⁺ ion reacts with hydroxide or ammonia (not in excess) or with an excess of hydroxide, a ____ __________ is formed

What is the formula of this precipitate?

A deep blue solution is formed when [Cu(H₂O)₆]²⁺ reacts with...

What is the charge of the complex ion that makes this solution appear deep blue?

What is the formula of this complex ion?

What is happens when the [Cu(H₂O)₆]²⁺ ion reacts with sodium carbonate?