Cracking and Alkenes 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEAQA Created by: krishmaxCreated on: 09-12-14 17:24 Cracking is a thermal decomposition 1 of 8 In cracking, oil fractions are heated so they vapourise 2 of 8 To heat the oil it can be passed over catalyst or... mixed with steam 3 of 8 Alkenes are hydrocarbons 4 of 8 Alkenes are UN unsaturated 5 of 8 Alkenes molecules contain one or more carbon to carbon double bonds 6 of 8 Alkenes general formula is (use small caps for indicies) CnH2n 7 of 8 Alkene molecules can be used to make plastic AKA polymers 8 of 8
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