Obtaining fossil fuels Flashcards

0
Q

Fossil fuels were formed ——– of years ago ?

A

Millions

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1
Q

Name all the missing fossil fuel ?
Crude oil
Natural gas
—-

A

Coal

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2
Q

Coal is formed over a long period of time from the remains of ——- that were pressed together under layers of rock ?

A

Animals

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3
Q

It is usually found —- underground, trapped between layers of rock seep through (impermeable rock) ?

A

Deep

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4
Q

——- — is often trapped in pockets above the crude oil

A

Natural gas

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5
Q

A limited resource like fossil fuels is called ——

A

Finite

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6
Q

Fossil fuels contain many useful chemicals, and we need to ——– these chemicals so that they are not wasted.

A

Seperate

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7
Q

Coal is often converted into —-.

A

Coke

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8
Q

When coke is burned as a fuel some ——— are not wasted.

A

Chemicals

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9
Q

Chemicals in crude oil are deprecated using ———- ————.

A

Fractional distillation

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10
Q

Paraffin is used for ——

A

Planes

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11
Q

Paraffin is another name for ——–

A

Kerosene

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12
Q

The oil that comes from the top of the fractional column because they have a lower ———

A

Viscosity

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13
Q

The bottom of the furnace has a —— viscosity

A

Higher

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14
Q

The crude oil is separated due to there ——- —–

A

Boiling point

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15
Q

Fossil fuels are a mixture of ———– molecules

A

Hydrocarbon

16
Q

The molecules in a hydro carbon are ———- bonded

A

Chemically

17
Q

The weak bonds have to be —— if the hydrocarbon is to boil

A

Broken

18
Q

The smaller hydrocarbon molecules are more readily form a vapour this is called more ——–

A

Volatile

19
Q

Hydrocarbon + oxygen ~ carbon dioxide + —–

A

Water

20
Q

The chemical symbol for oxygen

A

0

21
Q

Chemical symbol for hydrogeon

A

H

22
Q

—- layered over the dead animals under the sea

A

Rock

23
Q

Rock layers are ———– rocks

A

Sedimentary

24
Q

Coal is a —— —-

A

Fossil fuel

25
Q

1 carbon

4 hydrogeon

A

Methane

26
Q

2 carbon

6 hydrogeon

A

Ethane

27
Q

3 carbon

- hydrogeon

A

8

28
Q

4 carbon

10 hydrogeon

A

Butane

29
Q
  • carbon

12 hydrogeon

A

5

30
Q

When there’s plenty of oxygen this is known as ——– ———

A

Complete combustion

31
Q

When a Bunsen burner has a —- flame this is complete combustion

A

Blue

32
Q

Limewater is used to test for —— ——-

A

Carbon dioxide

33
Q

Incomplete gives of carbon also known as —-

A

Soot

34
Q

Chemical symbol for carbon monoxide

A

CO

35
Q

Chemical symbol for carbon

A

C