Fichas
Reactions of metal-aqua ions
Fichas del conjunto (40)
- 1What are the 5 transition metals we study that form metal aqua ions?Co
Cu
Fe
Al
Cr
Fe - 2Which are 2+?Co
Cu
Fe - 3Which are 3+?Al
Cr
Fe - 4How many water ligands are attached to each of the central metal ions?6
- 5What are the 3 reagents we need to remember the reaction colours of?Na₂CO₃
OH¯
NH₃ - 6What colour is the [Cu(H₂O)₆]²⁺ ion?Blue
- 7What colour is the [Cr(H₂O)₆]³⁺ ion?Ruby
- 8What colour is the [Al(H₂O)₆]³⁺ ion?Colourless
- 9What colour is the [Co(H₂O)₆]²⁺ ion?Pink
- 10What colour is the [Fe(H₂O)₆]³⁺ ion?Violet
- 11What colour is the [Fe(H₂O)₆] ²⁺ ion?Green
- 12When the [Fe(H₂O)₆] ²⁺ ion is reacted with OH¯ or NH₃, what is formed? (Formula and physical appearance)Green precipitate
Fe(H₂O)₄(OH)₂ - 13If 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?FeCO₃
- 14The [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)Brown
- 15How many moles of [Fe(H₂O)₃(OH)₃] are made in the reactions of [Fe(H₂O)₆]³⁺ with OH- or NH₃?1
- 16How many are made in the reaction with Na₂CO₃?2
- 17What colour precipitate is made when [Co(H₂O)₆]²⁺ is reacted with Na₂CO₃?Pink
- 18What is the formula of this precipitate?CoCO₃
- 19The same colour precipitate is formed when [Co(H₂O)₆]²⁺ is reacted with dilute ammonia and with OH-. What colour is this precipitate?Blue-green
- 20Is the formula of the precipitate the same?Yes
- 21What is the formula?Co(H₂O)₄(OH)₂
- 22What colour solution is formed when [Co(H₂O)₆]²⁺ reacts with excess ammonia?Straw
- 23What is the formula of the complex ion which makes this solution appear straw coloured?[Co(NH₃)₆]²⁺
- 24The [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?Excess hydroxide
- 25What is the formula of the ion formed in this reaction?[Al(OH)₄]¯
- 26The same colour precipitate is formed in the three other reactions. What colour is this?White
- 27For the reactions with ammonia/hydroxide, excess ammonia, and sodium carbonate the same white precipitate is made. What is the formula of this?Al(H₂O)₃(OH)₃
- 28What is the only difference between the reactions of hydroxide/ammonia and the reaction of sodium carbonate?Reaction with sodium carbonate - 2 moles of Al(H₂O)₃(OH)₃ formed
- 29What colour is the [Cr(H₂O)₆]³⁺ ion?Ruby
- 30When 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?Purple
[Cr(NH₃)₆]³⁺ - 31Out 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?[Cr(H₂O)₆]³⁺ and hydroxide/ammonia = green precipitate
[Cr(H₂O)₆]³⁺ and excess hydroxide = green solution
[Cr(H₂O)₆]³⁺ and sodium carbonate = green solution - 32What is the formula of the green precipitate?Cr(H₂O)₃(OH)₃
2[Cr(H₂O)₃(OH)₃] for reaction with Na₂CO₃ - 33What is the formula of the green solution formed when the [Cr(H₂O)₆]³⁺ reacts with an excess of hydroxide?[Cr(H₂O)₆]³¯
- 34The [Cu(H₂O)₆]²⁺ ion is ____Blue
- 35When the [Cu(H₂O)₆]²⁺ ion reacts with hydroxide or ammonia (not in excess) or with an excess of hydroxide, a ____ __________ is formedBlue precipitate
- 36What is the formula of this precipitate?Cu(H₂O)₄(OH)₂
- 37A deep blue solution is formed when [Cu(H₂O)₆]²⁺ reacts with...Excess NH₃
- 38What is the charge of the complex ion that makes this solution appear deep blue?2+
- 39What is the formula of this complex ion?[Cu(NH₃)₄(H₂O)₂]²⁺
- 40What is happens when the [Cu(H₂O)₆]²⁺ ion reacts with sodium carbonate?CuCO₃, a green-blue precipitate is formed
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- A-Level A2 CHEMISTRY Fichas sobre Reactions of metal-aqua ions, creado por ashiana121 el 29/01/2016.
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