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Flashcards in Colours Deck (47)
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1

(Copper I) Cu+

Green

2

(Copper II) Cu2+

Blue

3

(Copper II ammonia) Cu(NH3)4 2+

Blue

4

(Manganese II) Mn2+

Pink

5

(Permanganate) MnO4-

Purple

6

(Iron II) Iron2+

Yellow or green

7

(Iron III) Iron3+

Red or orange

8

(Iron III thiocyanate) FeSCN2+

Red

9

(Chromium III) Cr3+

Green

10

(Chromate ion) CrO4 2-

Yellow

11

(Dichromate ion) Cr2O7 2-

Orange

12

(Nickel II) Ni2+

Green

13

(Cobalt II) Co2+

Pink

14

(Hexaaquacobalt) Co(H2O)6 2+

Pink

15

(Cobalt chloride) CoCl4 2-

Blue

16

BaCO3

White

17

CaCO3

White

18

What ions are often colored?

Ions with unpaired d sublevel electrons (transition metal ions)

19

What ions are colorless?

Ions with all paired electrons (Zn2+, Mg2+, Al3+)

20

Metallic sulfides

Black or brown

21

Chromate precipitate and/or solids

Yellow

22

PbCl2

White

23

AgCl

White

24

TiO2

Wite

25

PhI2

Yellow

26

AgI

Yellow

27

AgCrO4

Red

28

Cu(OH)2

Blue

29

CuO

Black

30

Sulphur

Yellow