Transition Metals Flashcards

1
Q

What colour is aqueous Iron (II)

A

green solution

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2
Q

What colour is aqueous Copper(II)

A

blue solution

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3
Q

What colour is aqueous Iron (III)

A

Purple solution (may look yellow-brown due to some [Fe(H20)5(OH)]2(aq)

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4
Q

What colour is aqueous aluminum (III)

A

Colourless solution

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5
Q

Iron (II) + NaOH

A

Fe(H20)4(OH)2 (s)

green ppt goes brown on standing in air

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6
Q

Copper (II) + NaOH

A

Cu(H20)4(OH)2 (s)

blue ppt

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7
Q

Iron (III) + NaOH

A

Fe(H20)3(OH)2 (s)

brown ppt

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8
Q

Aluminium (III) + NaOH

A

Al(H20)3(OH)3 (s)

white ppt

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9
Q

Iron (II) + excess NaOH

A

No further change

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10
Q

Copper (II) + excess NaOH

A

No further change

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11
Q

Iron (III) + excess NaOH

A

No further change

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12
Q

Aluminum (III) + excess NaOH

A

[Al(OH)4]- (aq)

colourless solution

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13
Q

Iron (II) + NH3 (aq)

A

Fe(H2O)4(OH)2 (s)

green ppt goes brown on standing in air

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14
Q

Copper (II) + NH3(aq)

A

Cu(H20)4(OH)2 (s)

blue ppt

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15
Q

Iron (III) + NH3 (aq)

A

Fe(H20)3(OH)3 (s)

brown ppt

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16
Q

Aluminum (III) + NH3 (aq)

A

Al(H20)3(OH)3 (s)

white ppt

17
Q

Iron (II) + excess NH3 (aq)

A

no further change

18
Q

Copper (II) + excess NH3 (aq)

A

[Cu(H20)2(NH3)4]2+ (aq)

deep blue solution

19
Q

Iron (III) + excess NH3 (aq)

A

no further change

20
Q

aluminum (III) + excess NH3 (aq)

A

no further change

21
Q

Iron (II) + Na2CO3(aq)

A

FeCO3 (s)

green ppt

22
Q

Copper (II) + Na2CO3 (aq)

A

CuCO3 (s)

blue-green ppt

23
Q

Iron (III) + Na2CO3 (aq)

A

Fe(H20)3(OH)3 (s)

brown ppt + C02 effervescence

24
Q

Aluminum (III) + Na2CO3 (aq)

A

Al(H20)3(OH)3 (s)

white ppt + CO2 effervescence