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Chemistry > Extracting Materials And Equilibria > Flashcards

Extracting Materials And Equilibria Flashcards

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1
Q

If something gains oxygen it is…

A

Oxidised

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2
Q

If something loses oxygen it is…

A

Reduced

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3
Q 
Pop
Stars
Can
Make
Absolutely 
Zillions
If
Tiny
Little
Children
Spend
Generously
Please
A 
Potassium 
Sodium
Calcium
Magnesium
Aluminium
Zinc
Iron
Tin
Lead
Copper
Silver
Gold
Platinum
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4
Q

Which end of the reactivity series is the most reactive?

A

The top (potassium)

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5
Q

Where is carbon in the reactivity series?

A

Above zinc

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6
Q

Where is hydrogen in the reactivity series?

A

Below lead

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7
Q

Everything above hydrogen…

A

Will react with acids

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8
Q

Which end of the reactivity series is most resistant to oxidation?

A

The bottom (platinum)

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9
Q

What are displacement reactions examples of?

A

Redox reactions

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10
Q

What does the more reactive element do in displacement reactions?

A

Reacts to take the place of the less reactive element in a compound

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11
Q

The more reactive metal is…

The less reactive metal is…

A

Oxidised

Reduced

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12
Q

How are metals which are above carbon in the reactivity series separated?

A

Electrolysis

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13
Q

How are metals below carbon in the reactivity series separated?

A

Reduction with carbon

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14
Q

What is a metal ore?

A

A rock which contains enough metal to be economically worthwhile extracting the metal from it

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15
Q

What is the ore for lead?

A

Galena

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16
Q

What is the ore for copper?

A

Malachite

17
Q

What is the ore for mercury?

A

Cinnabar

18
Q

What is the ore for iron?

A

Haematite

19
Q

What is bioleaching?

A

Using bacteria to separate metals from their ores

20
Q

What is phytomining?

A

Growing plants in soil which contains metal compounds

21
Q

What are the advantages of bioleaching? (2)

A

Energy efficient

Pure metal

22
Q

What is a disadvantage of bioleaching?

A

Very slow

23
Q

What is an advantage of phytomining?

A

Can be done anywhere

24
Q

What are the disadvantages of phytomining? (2)

A

Impure

Pollution

25
Q

What are the 4 stages of a lifecycle assessment?

A

Choice of material
Manufacture
Use
Disposal

Chemistry (7 decks)

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