GCSE AQA Chemistry - Crude Oil

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Crude oil is formed from the buried remains of plants and animals - it's a fossil fuel. Over millions of years, the remains turn into crude oil, which can be extracted by drilling and pumping.

Crude Oil is a mixture of hydrocarbons 

1) A mixture consists of two (or more) elements or compounds that aren't chemically bonded to each other.

2) Crude oil is a mixture of many different compounds. Most of the compounds are hydrocarbon molecules.

3) Hydrocarbons are basically fuels such a petrol and diesel. They're made of just carbon and hydrogen.

4) There are no chemical bonds between the different parts




thank you!

Although it would be worth mentioning the properties of long- and short-chain hydrocarbons as they normally ask these in a crude oil question:

Short-chain: Low boiling point; high volatility; low viscosity; highly flammable.

Long-chain: High boiling point; low volatility; high viscosity; burns with a black smoke.

nevertheless, this is a really great resource :D



Hey, thanks.. I will add that in right now :)

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