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C1 Chemistry > Using carbon fuels > Flashcards

Using carbon fuels Flashcards

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1
Q

What does burning hydrocarbon fuels produce? and write the equation

A

methane + oxygen= carbon dioxide + water

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2
Q

when does complete combustion occur?

A

when a fuel burns in plenty of oxygen

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3
Q

what is made during incomplete combustion? and write the equation

A

toxic gas and soot

fuel + oxygen = carbon monoxide + water

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4
Q

what method releases more energy, complete or incomplete combustion

A

complete

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5
Q

why is complete combustion preferred than incomplete combustion?

A

because incomplete combustion releases carbon monoxide (a poisonous gas)

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6
Q

why do gas fires and boilers need to be serviced regularly?

A

to check if they aren’t releasing harmful gases i.e. carbon monoxide

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7
Q

name 3 characteristics as to why a certain fuel is chosen?

A

energy value, availability, toxicity, storage method

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8
Q

what is the word equation for a fuel burning in air?

A

fuel+ oxygen- carbon dioxide+ water

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9
Q

what are the 2 word equations for incomplete combustion?

A

fuel+ oxygen- carbon monoxide + water

fuel+ oxygen- carbon + water

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10
Q

what produces more pollution? coal or petrol

A

coal

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11
Q

what is a better characteristic about coal than petrol?

A

it doesn’t catch fire as easily

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12
Q

what does volatile mean? and is coal volatile?

A

able to turn into a gas easily

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13
Q

name another factor that Is bad about coal?

A

it is dirty and takes up a lot of space

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14
Q

what is used to test for carbon dioxide?

A

lime water

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15
Q

why would coal not be used as fuel for a car? name 3 factors

A

it doesn’t ignite easily, it is not a liquid meaning it does circulate easily through the engine, produces acid fumes

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16
Q

what is causing an increase on carbon dioxide emissions?

A

large countries with a growing population

17
Q

what causes carbon dioxide emissions?

A

fossil fuels being burned

18
Q

what is seen on a Bunsen burner with complete combustion?

A

a blue flame because there is plenty of air coming through the hole

19
Q

what are the benefits of complete combustion?

A

no toxic chemicals are produced, more energy is made and used, less soot is made

20
Q

what toxic chemical does burning coal produce?

A

sulphur dioxide

21
Q

what does sulphur dioxide do to rain?

A

dissolves in it and creates acid rain

22
Q

what affect does acid rain have on us?

A

it destroys stone buildings, kills fishes, damages wildlife and trees

23
Q

what is the formula of carbon monoxide?

A

CO

C1 Chemistry (7 decks)

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