SCIENCE REVISION science revision for main chemistry 3.5 / 5 based on 6 ratings ? ScienceChemistryGCSEAQA Created by: SophiaCreated on: 17-11-08 21:26 What is the general formula for alkanes? CnH2n+2 1 of 8 How can alkanes be described? They are saturated. 2 of 8 What is an advantage of using concrete to make building foundations? It is strong when squashed 3 of 8 What is caused by the release of carbon dioxide into the atmosphere? Global warming 4 of 8 What causes global dimming? The Sun releasing less energy 5 of 8 How do you produce calcium oxide from calcium carbonate? By heating it 6 of 8 Limestone is mostly made of what? Calcium carbonate 7 of 8 Water is one of the ingredients of concrete. What are the other ingredients? Cement, sand and crushed rock 8 of 8
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