C1 OCR Chemistry GCSE 0.0 / 5 ? ChemistryGCSEOCR Created by: Gods ownCreated on: 06-11-15 23:52 What are the three main fossil fuels? natural gas, coal and crude oil 1 of 5 Why are fossil fuels formed slowly? They are limited supplies ( they are finite) 2 of 5 Why are fossil fuels described as non-renewable? We are using them up faster than new supplies can be formed. 3 of 5 What is a fractional distillation? The separation of crude oil into separate fractions 4 of 5 What is crude oil a mixture of ? A mixture of hydrocarbons that contain hydrogen and carbon atoms. 5 of 5
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