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Transition Metals

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Metal aqua ion
Colour
[Co(H2O)6]2+   Pink solution  
🗑
[Co(H2O)6]2+ added 2OH/NH3   [Co(H2O)4(OH)2] Blue/green precipitate insoluble in XS OH-  
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[Co(H2O)4(OH)2] XS 6NH3   [Co(NH3)6]2+ Straw solution  
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[Co(H2O)6]2+ + CO3 2-   CoCO3 Pink precipictate  
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[CoCl4]2-   Blue solution  
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[Cu(H2O)6]2+   Blue solution  
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[Cu(H2O)4(OH)2]   Blue precipitate insoluble in XS OH-  
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[Cu(H2O)4(OH)2] XS 4NH3   [Cu(H2O)2(NH3)4]2+ Royal deep blue solution  
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CuCO3   Green/blue precipitate  
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[CuCl4]2-   yellow solution  
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[Fe(H2O)6]2+   Green solution  
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[Fe(H2O)4(OH)2]   Green precipitate insoluble in XS OH-/NH3  
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FeCO3   Green precipitate  
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[Al(H2O)6]3+   Colourless solution  
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[Al(H2O)6]3+ (added 3OH/NH3)   [Al(H2O)3(OH)3] White precipitate insoluble in XS NH3  
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[Al(H2O)3(OH)3] XS 6OH-   [Al(OH)6]3- Colourless solution  
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2[Al(H2O)6]3+ +3CO3 2-   2[Al(H2O)3(OH)3] white precipitate  
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[Cr(H2O)6]3+   Violet solution  
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[Cr(H2O)6]3+(added 3OH/NH3)   [Cr(H2O)3(OH)3]Green precipitate  
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[Cr(H2O)3(OH)3] XS 6OH-   [Cr(OH)6]3- Green solution  
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[Cr(H2O)3(OH)3] XS 6NH3   [Cr(NH3)6]3+ Purple solution  
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2[Cr(H2O)6]3+ +3CO3 2-   2[Cr(H2O)3(OH)3]Green precipitate  
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[Fe(H2O)6]3+   Yellow solution  
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[Fe(H2O)6]3+ (added 3OH/NH3)   [Fe(H2O)3(OH)3] brown precipitate insoluble in XS OH/NH3  
🗑
2[Fe(H2O)6]3+ +3CO3 2-   2[Fe(H2O)3(OH)3] brown precipitate  
🗑


   

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Created by: Carrie Wong ^.^
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