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Across 1. a saturated hydrocarbn 6. This is added to test for the presence of a double bond 8. Has the functional group COOH 9. Alkenes like ETHENE can be formed by the __________________ of alcohols like ETHANOL with heat & a catalyst 11. Process in which sugar is converted to alcohol by yeast 13. Name given to a formula showing all the bonds 14. Alkanes will react with halogens like chlorine only in the presence of this type of light 15. This is the type of reaction that occurs with chlorine and alkanes 17. The type of reaction undergone by alkenes where molecules 'add across' the double bond 18. unsaturated hydrocarbon with formula CnH2n 19. Wrod used to describe the runnyness of a liquid. 20. A mixture of many hydrocarbons - Once known as 'black gold' 22. Describes a molecule containing single bonds only 25. Word to describe a liquid that readily vaporises into a gas 26. The process of breaking down long chain ALKANES into SMALLER alkanes and ALKENES 27. An alkene with 3 carbons in the formula

Down 2. Has the formula CnH2n+1 OH 3. Industrial process used to separate oil into groups of molecules with similar boiling points 4. An alkane with one carbon in its formula 5. This happens to bromine water when added to an alkene 7. Name given to a family of organic compounds with similar properties and in which the formulae differ by CH2 8. This is formed along with water when alkanes are combusted in plenty of oxygen 10. Made from hydrogen and carbon only 12. Name given to the addition of water to an alkene to form an alcohol (H__) 16. Alkanes are __________ in water 21. Has the formula C2H5OH 23. Compounds with the same molecular formula but different displayed formula and different properties 24. Formed when lots of single unit monomers join to form very long chains