chemistry

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Created by: Andrei stephen
Created on: 24-11-12 14:05

what is a hydrocabon?

hydrogen and carbon

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what are fossil fules made of?

dead plants and animals that died millons of years ago

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how can geolgists tell where oil is?

by looking at the structure of rocks oil genraly tends to be traped between two layers of inperbale rock or where there is a dome of rock

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how long dose crude oil take to form?

millons of years

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what dose crude oil is a finate resorce mean?

we are useing it up more quicly than it can be made

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what damages can oil spills cause?

oil slicks which can travel far from the origonal spill & it can get caught in birds fethers stoping them from flying

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Hydrocarbons have different boiling points. They can be solid, liquid or gas at room temperature which are they

small hydrocarbons with only a few carbon atoms have low boiling points and are gaseshydrocarbons with between five and 12 carbon atoms are usually liquidslarge hydrocarbons with many carbon atoms have high boiling points and are solids

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how can substaces be serated in crude oil

fraction distlation

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give five facts about fractional distlation

1) used to brake up crude oil (2) seprates mixture into a nuber of diffrent parts (3) the fractions evaprate a diffren temptures (4) a fractioning coulomb is used (5) the coulm is hot at tha bottom and cool at the top

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if you have tooo many large hydrocabons how do you break them down ?

craCking

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what is craking?

you pass long chain hydrocabons over iron catlists this breaks them down into more in demand shor chain hydrocabons

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what is an alkene?

a hydrocabon with a carbon to carbon doubel bond

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what is an alkane?

this is a saturated hydrocabon with only one bond to every atom