Chemistry 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEEdexcel Created by: Joshua matterfaceCreated on: 25-01-16 16:41 They have a Single bond Alkane 1 of 6 They have a double bond Alkene 2 of 6 They are made of only hydrogen and carbon Hydrocarbon 3 of 6 These are fossil fuels Crude oil,Coal,Natural gas 4 of 6 % of oxygen in atmosphere 21% 5 of 6 % of nitrogen in our atmosphere 78% 6 of 6
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