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Chemistry IGCSE > Metals (General) > Flashcards

Metals (General) Flashcards

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1
Q

Steel is made up of…

A

Iron and carbon

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2
Q

Percentage of carbon in mild steel

A
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3
Q

Properties of mild steel

A

Malleable, ductile

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4
Q

Percentage of carbon in medium steel

A

0.2-0.6%

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5
Q

Properties of medium steel

A

Tougher and harder than mild steel

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6
Q

Percentage of carbon in high carbon steel

A

0.6-1.5%

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7
Q

Properties of high-carbon steel

A

Tough and hard, but brittle

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8
Q

Use of mild steel

A
  • car bodies
  • machinery
  • cables
  • nails
  • chains
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9
Q

Uses of medium steel

A
  • steel girders

- rails

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10
Q

Uses of high carbon steel

A
  • cutlery
  • tools
  • springs
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11
Q

Brass is made up of…

A

Copper and zinc

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12
Q

Bronze is made up of…

A

Copper and tin

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13
Q

Pewter is made up of…

A

Lead, tin, antimony

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14
Q

Solder is made up of…

A

Tin and lead

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15
Q

Stainless steel is made up of…

A

Iron, chromium, nickel

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16
Q

Duralumin is made up of…

A

Aluminium, copper

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17
Q

Types of steel

A
  • stainless steel
  • chromium steel
  • high-speed steel
  • manganese steel
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18
Q

Uses of brass

A
  • electric plug
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19
Q

Uses of bronze

A
  • propellers
20
Q

Uses of pewter

A
  • souvenir
21
Q

Uses of solder

A
  • joining electrical connections
22
Q

Uses of stainless steel

A
  • cutlery
23
Q

Uses of duralumin

A
  • aircraft bodies
24
Q

Stainless steel is made up of…

A

Iron, carbon, chromium, nickel

25
Q

Chromium steel is made up of…

A

Iron, carbon, chromium

26
Q

High-speed steel is made up of…

A

Iron, carbon, tungsten, vanadium

27
Q

Manganese steel is made up of…

A

Iron, carbon, manganese

28
Q

Properties of stainless steel

A
  • corrosion-resistant

- acid-resistant

29
Q

Uses of stainless steel

A
  • cutlery

- chemical plants

30
Q

Properties of chromium steel

A
  • hard

- corrosion-resistant

31
Q

Uses of chromium steel

A
  • ball bearings
32
Q

Properties of high-speed steel

A
  • very hard

- heat resistant

33
Q

Uses of high-speed steel

A
  • high-speed drills
34
Q

Properties of manganese steel

A
  • very high tensile strength
35
Q

Uses of manganese steel

A
  • rock-breaking machinery

- railway crossovers

36
Q

Conditions for rusting

A
  • water

- oxygen

37
Q

State several rust-prevention methods:

A
  • sacrificial protection

- coating iron in oil/grease/paint

38
Q

Properties of zinc

A
  • reactive metal

- bigger atomic radius than copper

39
Q

Uses of zinc

A
  • galvanisation

- making brass

40
Q

Properties of copper

A
  • good conductor
41
Q

Uses of copper

A
  • electrical wiring

- making alloys

42
Q

Properties of aluminium

A
  • corrosion-resistant
  • low density
  • strong
43
Q

Uses of aluminium

A
  • food container

- aircraft bodies

44
Q

Reasons to recycle metals:

A
  • finite resources
  • discarded metals are not aesthetically appealing
  • metal is non-biodegradable
  • land is wasted as landfill
  • cost of recycling metal is a fraction of the cost of extracting metal
  • recycling adds job slots + increases employment
45
Q

Characteristics of alloys

A
  • hard+strong
  • corrosion-resistant
  • lustrous
  • disorderly arrangement of atoms, preventing layers from sliding over one another

Chemistry IGCSE (18 decks)

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