C2 Revision Flashcards - Nanotechnology, crude oil and cross-link 0.0 / 5 ? ChemistryNanoscienceGCSEAQA Created by: JoeCreated on: 19-05-13 18:22 What is crude oil? Crude oil is a thick, sticky, dark-coloured liquid 1 of 14 What is crude oil a mixture of? Hydrocarbons 2 of 14 What is fractions? Being separated into groups of molecules. 3 of 14 How is fractions done? By fractional distillation 4 of 14 How do we get crude oil? From fossil fuels that are then piped up from the ground 5 of 14 Bigger molecules are more likely to be....? Liquid/solid 6 of 14 Bigger molecules have lots of....? Forces 7 of 14 What do cross-links do? Stops molecules sliding over each other 8 of 14 What can cross-links do? It can make rubber less flexible, stronger and harder. It can also give the rubber a higher melting point. 9 of 14 What is nanotechnology measure in? Nanometres 10 of 14 Each nanometre is what? (Measuring Way) A billionth of a metre 11 of 14 What else is a nanometre? The width of a DNA molecule --- The distance your fingernails grow a second --- 1/80000 the thickness of a human air. 12 of 14 Some products of nanotechnology? Sun screen -- tennis balls and rackets -- electronic paper -- self-cleaning windows 13 of 14 Some uses of nanotechnology? Burning solid fuels -- produce nanoparticles 14 of 14
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