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Yr 9 Chemistry > Metals > Flashcards

Metals Flashcards

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0
Q

What do we call metals found in the Earth and not in compounds?

A

Native Metals

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1
Q

What section of the periodic table do most metals live in?

A

Transition Metals

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2
Q

Define the word ‘ore’

A

An ore is the rock that you extract a metal from.

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3
Q

Which metal is more reactive? Calcium or Silver?

A

Calcium

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4
Q

List 2 ways in which limestone and products made from limestone are useful to the building industry

A

1) It is used to make cement
2) It is used to make concrete
3) We can made glass with limestone

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5
Q

What is limestone mainly made of?

A

Calcium carbonate

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6
Q

What would happen if you heated calcium carbonate?

A

It would decompose and make calcium oxide and carbon dioxide

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7
Q

What does carbon dioxide do to limewater?

A

Turns it cloudy

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8
Q

What happens in step one of the limestone cycle?

A

Calcium carbonate is heated to make calcium oxide, it also gives off carbon dioxide

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9
Q

What is step 2 in the limestone cycle?

A

Water is added to calcium oxide and it produces calcium hydroxide

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10
Q

What happens in step 3 on the limestone cycle?

A

Water is added to calcium hydroxide and filtered and it produced calcium hydroxide solution

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11
Q

What happens in step 4 of the limestone cycle?

A

Carbon dioxide is added to the calcium hydroxide solution to make calcium carbonate

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12
Q

How is concrete made?

A

Concrete is made by heating limestone with clay in a kiln

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13
Q

How is mortar made?

A

It is made by mixing cement and sand with water

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14
Q

How is concrete made?

A

Cement is made by mixing aggregate and cement sand and water

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15
Q

Why is titanium used to make planes?

A

It is used to make planes because it resists corrosion and have low densities compared to other metals

16
Q

How can copper be purified?

A

Electrolysis

17
Q

Name some new ways to extract copper from low grade ores

A

Bio Leaching and photo mining

18
Q

Where in the periodic table are the transition metals found?

A

in the central block

19
Q

What is the main compound in crude oil?

A

Hydrocarbons

20
Q

What are Alkanes?

A

Saturated hydrocarbons, they contain as much hydrogen atoms as possible in their molecule

21
Q

What process do we use to separate crude oil?

A

Fractional distillation

Yr 9 Chemistry (2 decks)

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