redox reactions + observations

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31 Terms

1

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Reductant

H₂

colourless solid

Oxidised

H⁺

colourless solution

2

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Reductant

Mg

silver/grey solid

Oxidised

Mg²⁺

colourless solution

3

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Reductant

Zn

silver/grey solid

Oxidised

Zn²⁺

colourless solution

4

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Reductant

Fe

silver/grey solid

Oxidised

Fe²⁺

pale green solution

5

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Reductant

Cu

pink/orange solid

Oxidised

Cu²⁺

blue solid

6

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Reductant

C

black solid

Oxidised

CO₂

colourless gas

7

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Reductant

I^-

colourless solution

Oxidised

I₂

yellow/brown solution or black solid

8

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Reductant

Br^-

colourless solution

Oxidised

Br₂

red/brown liquid

9

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Reductant

Fe²⁺

pale green solution

Oxidised

Fe³⁺

red/brown solution

10

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Reductant

H₂S

colourless gas

Oxidised

S

yellow solid

11

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Reductant

SO₂

colourless gas

Oxidised

SO₄^2-

colourless solution

12

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Reductant

SO₃^2-

colourless solution

Oxidised

SO₄^2-

colourless solution

13

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Reductant

HSO₃^-

colourless solution

Oxidised

SO₄^2-

colourless solution

14

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Reductant

S₂O₃^2-

colourless solution

Oxidised

S₄O₆^2-

colourless solution

15

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Reductant

H₂O₂

colourless liquid

Oxidised

O₂

colourless gas

16

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Reductant

H₂C₂O₄

colourless solution

Oxidised

CO₂

colourless gas

17

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Oxidant

H₂O₂

colourless liquid

Reduced

H₂O

liquid

18

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Oxidant

MnO₄^-(acidic)

purple solution

Reduced

Mn²⁺

very pale pink solution

19

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Oxidant

MnO₄^-(basic)

purple solution

Reduced

MnO₄^2-

green solution

20

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Oxidant

MnO₄^-(neutral)

purple solution

Reduced

MnO₂

brown solid

21

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Oxidant

MnO₂

dark brown solid

Reduced

Mn²⁺

very pale pink solution

22

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Oxidant

Cl₂

yellow/green gas

Reduced

Cl^-

colourless solution

23

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Oxidant

Cr₂O₇^2-(acidic)

orange

Reduced

Cr³⁺

blue/green solution

24

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Oxidant

HNO₃

colourless

Reduced

NO₂

brown

25

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Oxidant

IO₃^-(acidic)

colourless solution

Reduced

I₂

yellow/brown solution or black solid

26

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Oxidant

OCl^-

colourless solution

Reduced

Cl₂

colourless gas

27

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Oxidant

O₂

colourless gas

Reduced

O^2-

colourless solid

28

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Oxidant

Fe³⁺

red/brown solution

Reduced

Fe²⁺

pale green solution

29

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Oxidant

I₂

yellow/brown solution

Reduced

I^-

colourless solution

30

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Oxidant

Cu²⁺

blue solution

Reduced

Cu⁺

white solution

31

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Oxidant

H⁺

colourless solution

Reduced

H₂

colourless gas