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Chemistry > Reactivity series > Flashcards

Reactivity series Flashcards

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1
Q

Metal + water?

A

Metal hydroxide + hydrogen

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2
Q

Metal + steam?

A

Metal hydroxide + hydrogen

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3
Q

Reaction of K and steam

A

React explosively, should not be carried out in the school lab

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4
Q

Reaction of Na and steam

A

React explosively, should not be carried out in the school lab

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5
Q

Reaction of Ca and steam

A

React explosively, should not be carried out in the school lab

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6
Q

Reaction of Ca and water

A

React readily

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7
Q

Reaction of K and water

A

React very violently, will explode

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8
Q

Reaction of Na and water

A

React violently, may explode. Na skids of the surface of the water

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9
Q

Reaction of mg with water

A

Reacts very slowly. Takes a few days to produce a test tube of hydrogen

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10
Q

Reaction of mg with steam

A

Hot mg reacts violently. A bright white glow is produced during the reaction

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11
Q

Reaction of zinc and water

A

No reaction

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12
Q

Reaction of iron and water

A

No reaction

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13
Q

Reaction of copper and water

A

No reaction

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14
Q

Reaction of silver and water

A

No reaction

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15
Q

Reaction of lead and water

A

No reaction

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16
Q

Reaction of zinc and steam

A

Hot zinc reacts readily. Yellow when hot and white when cold.

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17
Q

Reaction of iron and steam

A

Red-hot iron reacts slowly with steam. It has to be constantly heated for the reaction to progress.

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18
Q

Reaction of lead with steam

A

No reaction

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19
Q

Reaction of copper with steam

A

No reaction

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20
Q

Reaction of silver with steam

A

No reaction

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21
Q

Metal + HCl?

A

Metal chloride + hydrogen (For metals above hydrogen in the reactivity series)

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22
Q

Reaction of K with HCl

A

React explosively, should not be carried out in school lab

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23
Q

Reaction of Na and HCl

A

React explosively, should not be carried out in the school lab

24
Q

Reaction of Ca and HCl

A

Reacts violently

25
Q

Reaction of mg and HCl

A

Reacts rapidly

26
Q

Reaction of zinc and HCl

A

Reacts moderately fast

27
Q

Reaction of iron and HCl

A

Reacts slowly

28
Q

Reaction of lead with HCl

A

No reaction as Lead form insoluble lead (II) chloride that coats the metal

29
Q

Reaction of copper and HCl

A

No reaction

30
Q

Reaction of silver and HCl

A

No reaction

31
Q

Aluminium reaction with water

A

Aluminium reacts with oxygen in the air to form an insoluble layer of aluminium oxide, preventing further reaction

32
Q

Aluminum reaction with steam

A

Aluminium reacts with oxygen in the air to form an insoluble layer of aluminium oxide, preventing further reaction

33
Q

Metal + Carbon

A

Metal + CO2 (Only metal oxides below carbon can be reduced by carbon)

34
Q

Metal oxide + hydrogen

A

Metal + steam (only metal oxides below hydrogen can be reduced by hydrogen)

35
Q

Link between reactivity and temperature needed for reduction?

A

The higher the metal in the reactivity series, the higher the temperature needed for the reduction of the metal

36
Q

Link between reactivity and tendency to form ions

A

A more reactive metal has a greater tendency to form positive ions compared to a less reactive metal

37
Q

How do displacement reactions work

A

The more reactive metal displaces the less reactive metal

38
Q

What type of reaction is a displacement reaction

A

A redox reaction

39
Q

Reaction between a metal and the oxide of another metal

A

The more reactive metals reduces the oxide of the less reactive metal

40
Q

Action of heat on metal carbonates

A

The more reactive a metal is the harder it is to decompose its carbonate by heat

41
Q

K carbonate with heat

A

Unaffected

42
Q

Na carbonate with heat

A

Unaffected

43
Q

Metals carbonates below Na with heat

A

Decomposes into metal oxide and CO2

44
Q

Silver carbonate with heat

A

Decomposes to form silver oxide and CO2 which further decomposes to form silver

45
Q

Which metals are extracted by electrolysis

A

K, Na, Ca, Mg (High up, stable, difficult to break down)

46
Q

Which metals are extracted by reduction by carbon

A

Zn, Fe, Cu, Pb, Ag (Lower, less stable)

47
Q

Conditions for rusting

A

Water and oxygen

48
Q

Reaction of iron during rusting

A

Iron is oxidised to form Iron (III) oxide

49
Q

What increases the rate of rusting

A

Sodium Chloride

50
Q

How to prevent rusting

A

Barrier methods or sacrificial protection

51
Q

How do barrier methods work

A

By keeping iron away from oxygen and water (Painting, oiling, greasing, or coating)

52
Q

What is sacrificial protection?

A

Use of a more reactive metal to protect iron and steel by reacting in stead of it (rust/ corrode)

53
Q

Disadvantages of barrier methods

A

Rust will form if the layer is scratched or torn

54
Q

Advantages of using a sacrificial metal

A

Metal does not rust even if layer is scratched

55
Q

Advantages of barrier methods

A

Gives it a nice shiny finish

Chemistry (3 decks)

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