science 0.0 / 5 ? ChemistryOrganic and Green ChemistryGCSEAQA Created by: AneesahbaidenCreated on: 11-09-19 14:51 what are the four main types of hydrocarbons? methane, ethane, propane, butane 1 of 11 what is the general formula for the homologous series of alkanes? CnH2n+2 2 of 11 why is crude oil a finite source? They are a non - renewable source. The conditions on earth have changed. 3 of 11 Give one drawback of using two dimensional displayed formulae to represent alkanes. Does not show the 3D structure. 4 of 11 Give one advantage of using two-dimensional displayed formulae to represent alkanes They are easier to display. 5 of 11 Explain why carbon is able to form four bonds with hydrogen atoms carbon has four electrons on its outer shell so can accommodate four more. 6 of 11 Explain why a hydrogen atom is able to form only one bond with a carbon atom. Hydrogen has one electron on its shell so it can accommodate one more 7 of 11 what type of bonds form between carbon and hydrogen atoms? covalent. 8 of 11 what is cracking? the breaking down of long chain hydrocarbons into smaller chains 9 of 11 what is catalytic cracking? the heavy fraction is heated until vaporised 10 of 11 what steam cracking? the heavy fraction is heated until vaporised 11 of 11
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