Across
- 3. can mean less than one, or is a group of hydrocarbons with similar melting points, produced during fractional distillation of crude oil.
- 5. BANK: VOLATILE, VISCOUS, NAPTHA, MONOMER, FRACTION, ETHENE, CRUDEOIL, CRACKING, COVALENT, BROMINE, ALKENES, ALKANES
- 7. the type of bonding between non - metals
- 9. one of the lighter fractions in crude oil
- 10. evaporates easily, even at room temperature.
- 11. does not flow easily
- 14. a method of breaking down large hydrocarbon molecules with heat and a catalyst.
- 15. an alkene with two carbon atoms
Down
- 1. this dissolved in water is decolourised in unsaturated compounds.
- 2. mixture of hydrocarbon molecules produced by fossilised plants and animals.
- 4. a family of saturated hydrocarbons.
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- 12. family of hydrocarbons containing a double bond.
- 13. thousands of these simple molecules join up to make a polymer