Reactions of metal aqua ions

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Chemistry

Chemical Reactions

A-Level Chemistry

AQA

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31 Terms

1
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Color of [Fe(H2O)6]2+

Green

2
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Color of [Cu(H2O)6]2+

Blue

3
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Color of [Fe(H2O)6]3+

Yellow

4
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Color of [Al(H2O)6]3+

Colorless

5
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State of precipitate

Solid

6
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State of metal aqua ion solution

Aqueous

7
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State of water

Liquid

8
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Fe(H2O)62+ + OH- obs

some OH- : green solution → green precipitate

XS OH- : no visible reaction

9
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Fe(H2O)62+ + OH- equation

some OH- : Fe(H2O)62+ + 2OH-→ [Fe(H2O)4(OH)2 ] + 2H2O

XS OH- : no visible reaction

10
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Cu(H2O)62+ + OH- obs

some OH- : blue solution → blue precipitate

XS OH- : no visible reaction

11
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Cu(H2O)62+ + OH- equations

some OH- : Cu(H2O)62+ + 2OH-→ [Cu(H2O)4(OH)2 ] + 2H2O

XS OH- : no visible reaction

12
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Fe(H2O)63+ + OH- obs

some OH- : yellow/green solution → brown precipitate

XS OH- : no visible reaction

13
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Fe(H2O)63+ + OH- equation

some OH- : Fe(H2O)63+ + 3OH-→ [Fe(H2O)3(OH)3 ] + 3H2O

XS OH- : no visible reaction

14
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Al(H2O)63+ + OH- obs

some OH- : colorless solution → white precipitate
XS OH- : white precipitate → colorless soluteion

15
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Al(H2O)63+ + OH- equations

some OH- : Al(H2O)63+ + 3OH-→ [Al(H2O)3(OH)3 ] + 3H2O

XS OH- : [Al(H2O)3(OH)3 ] + OH-→ [Al(H2O)2(OH)4 ]- + H2O

16
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Fe(H2O)62+ + NH3 obs

some NH3 : green solution → green precipitate

XS NH3 : no visible reaction

17
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Cu(H2O)62+ + NH3 obs

some NH3 : blue solution → blue precipitate

XS NH3 : blue precipitate → deep blue solution

18
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Fe(H2O)63+ + NH3 obs

some NH3 : yellow solution → brown precipitate

XS NH3 : no visible reaction

19
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Al(H2O)63+ + NH3 obs

some NH3 : colorless solution → white precipitate

XS NH3 : no visible reaction

20
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Fe(H2O)62+ + NH3 equations

some NH3 : Fe(H2O)62+ + 2OH-→ [Fe(H2O)4(OH)2 ] + 2H2O

XS NH3 : no visible reaction

21
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Cu(H2O)62+ + NH3 equations

some NH3 : Cu(H2O)62+ + 2OH-→ [Cu(H2O)4(OH)2 ] + 2H2O

XS NH3 : [Cu(H2O)4(OH)2 ] + 4NH3→ [Cu(H2O)2(NH3)4 ]2+ + 2H2O + 2OH-

22
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Fe(H2O)63+ + NH3 equations

some NH3 : Fe(H2O)63+ + 3OH-→ [Fe(H2O)3(OH)3 ] + 3H2O

XS NH3 : no visible reaction

23
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Al(H2O)63+ + NH3 equations

some NH3 : Al(H2O)63+ + 3OH-→ [Al(H2O)3(OH)3 ] + 3H2O

XS NH3 : no visible reaction

24
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Fe(H2O)62+ + CO32- obs

some CO32- : green solution → green precipitate

25
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Cu(H2O)62+ + CO32- obs

some CO32- : blue solution → green precipitate

26
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Fe(H2O)63+ + CO32- obs

some CO32- : yellow solution → brown preciptate (+ bubbles of gas)

27
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Al(H2O)63+ + CO32- obs

some CO32- : colorless solution → white precipitate (+bubbles of gas)

28
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Fe(H2O)62+ + CO32- equation

[Fe(H2O)6]2+ + CO32- → FeCO3 + 6H2O

29
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Cu(H2O)62+ + CO32- equation

[Cu(H2O)6]2+ + CO32- → CuCO3 + 6H2O

30
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Fe(H2O)63+ + CO32- equation

2[Fe(H2O)6]3+ + 3CO32- → 2Fe(H2O)3(OH)3 + 3CO2 + 3H2O

31
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Al(H2O)63+ + CO32- equation

2[Al(H2O)6]3+ + 3CO32- → 2Al(H2O)3(OH)3 + 3CO2 + 3H2O

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