Transition Metals

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Hexaaquacopper (II) solution
[Cu(H2O)6]2+ = Blue
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Hexaaquacopper (II) ion
[Cu(H2O)6]2+ = Blue
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Hexaaquacopper (II) + (little) ammonia
Cu(H2O)4(OH)2 = Blue precipitate
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Hexaaquacopper (II) + excess ammonia
[Cu(H2O)2(NH3)4]2+ = Royal blue solution
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Hexaaquacopper (II) + excess HCl
[CuCl4]2- = Green/yellow solution
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Hexaaquacopper (II) + Na2CO3
CuCO3 = Green/blue precipitate.
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Hexaaquairon(II) solution
[Fe(H2O)6]2+ = Pale green
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Hexaaquairon (II) ion
[Fe(H2O)6]2+ = Green
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Hexaaquairon (II) + (little) ammonia
Fe(H2O)4(OH)2 = Green precipitate, may turn brown on standing.
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Hexaaquairon (II) + Na2CO3
ReCO3 = Green precipitate
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Hexaaquacobalt (II) solution
[Co(H2O)6]2+ = Pink
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Hexaaquacobalt (II) ion
[Co(H2O)6]2+ = Pink
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Hexaaquacobalt (II) + (little) ammonia
Co(H2O)4(OH)2 = Blue precipitate
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Hexaaquacobalt (II) + excess ammonia
[Co(NH3)6]2+ = Straw coloured solution
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Hexaaquacobalt (II) + excess HCl
[CoCl4]2- = Blue solution
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Hexaaquacobalt (II) + Na2CO3
CoCO3 = Pink precipitate
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Hexaaquairon (III) solution
[Fe(H2O)6]3+ = Yellow
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Hexaaquairon (III) ion
[Fe(H2O)6]3+ = Violet
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Hexaaquairon (III) + (little) ammonia
Fe(H2O)3(OH)3 = Brwon precipitate
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Hexaaquairon (III) + excess OH-
[Fe(OH)6]3-
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Hexaaquairon (III) + Na2CO3
Fe(H2O)3(OH)3 = Brown precipitate
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Other cards in this set

Card 2

Front

[Cu(H2O)6]2+ = Blue

Back

Hexaaquacopper (II) ion

Card 3

Front

Cu(H2O)4(OH)2 = Blue precipitate

Back

Preview of the back of card 3

Card 4

Front

[Cu(H2O)2(NH3)4]2+ = Royal blue solution

Back

Preview of the back of card 4

Card 5

Front

[CuCl4]2- = Green/yellow solution

Back

Preview of the back of card 5
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