Across
- 2. very large molecules made up of repeating units
- 4. a reaction in which one molecule combines with another to form a larger molecule with no other products
- 6. how is petrol and other fuels extracted from crude oil?
- 7. the chemical breakdown of a substance by bacteria
- 8. butanol is an
- 10. decompose (hydrocarbons) by heat and pressure (a process)
- 13. two molecules join together and a small molecule is eliminated (this process is called...)
- 16. similar chemical properties and 2 others make up
- 17. ethane is an
- 18. a long chain molecule formed by the joining of monomers
Down
- 1. group of atoms responsible for the characteristic reactions of a compound
- 3. polymers formed by addition reactions
- 5. hydrocarbons that have a C=C double bond are
- 9. a substance that speeds up a reaction without using itself up
- 11. ethanoic acid is a
- 12. hydrogen and carbon equal a
- 14. same molecular formula but different structural formulae
- 15. propene is an