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Chem f4 8:Manufactured substances in industry > 8.1:Alloy and its importance > Flashcards

8.1:Alloy and its importance Flashcards

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1
Q

Pewter is for…

A

souvenirs/trophies/decorative ornaments

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2
Q

Duralumin is for…

A

airplane body/electric cables/racing bicycles

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3
Q

Bronze is for…

A

medals/monuments/trophies

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4
Q

brass is for…

A

musical instruments/doorknobs/keys

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5
Q

steel is for…

A

structure of building/railway tracks/body of cars

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6
Q

Stainless steel is for…

A

cutlery/sinks/surgical instruments

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7
Q

Duralumin made of…

A

Aluminium 93%
Copper 3%
Magnesium 3%
Manganese 1%

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8
Q

Bronze made off…

A

Copper 90%
Tin 10%

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9
Q

Brass made of…

A

Copper 70%
Zinc 30%

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10
Q

steel made of…

A

iron 98%
carbon 0.2-2%

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11
Q

stainless steel made of…

A

iron 73%
Chromium 18%
Nickel 8%
Carbon 1%

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12
Q

Pewter made of…

A

Tin 95%
Antimony 3.5%
Copper 1.5%

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13
Q

Pure metal is made of…

A

One type of atom that same size
arranged in an orderly arrangement
the layers of atoms in the metal easily slide over eachother when force is applied

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14
Q

Alloy formed when…

A

Foreign atoms + pure metal

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15
Q

The orderly arrangement of atoms of pure metals in alloy is…

A

Disrupted
Difficult for the layers atoms in alloy to slide over eachother when force is applied

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16
Q

There are ……….. between the atoms in a pure metal

A

Empty spaces
the layers of atoms in a metal will slide to fill the empty spaces when force is applied
form a new structure

17
Q

There are ……….. between the atoms in a pure metal

A

Empty spaces
the layers of atoms in a metal will slide to fill the empty spaces when force is applied
form a new structure

18
Q

Properties of alloy is…

A

Shiny
Resistant to corrosion
Hard

19
Q

Properties of pure metal is…

A

Dull
easily corroded
Less hard

Chem f4 8:Manufactured substances in industry (1 decks)

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