Across
- 5. Reaction where two molecules join and a small molecule (e.g., water) is removed.
- 6. Type of reaction where the C=C bond breaks and atoms add across the double bond.
- 8. Reaction where alkenes react with bromine water, turning it colourless.
- 9. Thermal decomposition of large hydrocarbons into smaller alkanes and alkenes.
- 10. Biological process where sugars are converted to ethanol and CO₂ by yeast.
- 11. Product formed when bromine water reacts with an alkene.
- 14. Type of polymerisation that produces nylon or polyester.
- 15. Reaction in which hydrocarbons burn in oxygen to produce CO₂ and H₂O.
- 16. Reaction mechanism when ethene reacts with hydrogen (requires nickel catalyst).
- 19. Name for small molecules that join up in addition polymerisation.
Down
- 1. Formation of polymers from monomers containing C=C double bonds (e.g., ethene → poly(ethene)).
- 2. Process breaking long hydrocarbons with heat and catalyst into alkane + alkene.
- 3. Reaction where methane + chlorine → chloromethane + HCl (UV light needed).
- 4. Addition of steam to an alkene to form an alcohol.
- 7. First step used to separate components of crude oil by boiling point.
- 12. Gas produced from complete combustion of hydrocarbons.
- 13. Reaction between an alcohol and carboxylic acid to form a fruity-smelling product.
- 17. Reaction converting alcohols into carboxylic acids.
- 18. Product formed when ethanoic acid reacts with ethanol.
