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6. Polymers are long chains of....
- monomers which have broken their double bond
- monomers with a double bond
- 5 monomers with double bonds
- dense monomers
7. What is added to ethene to produce ethanol?
- Polymers
- More carbons
- Water
- Butanol
8. Cracking is used to separate a ______ chain into more useful sections
- long
- short
- unsaturated
- saturated
9. What is the highest temperature to vapourise hydrocarbons?
- 350- 500 degrees celcius
- 344-350 degrees celsius
- 216-300 degrees celsius
- 320-340 degrees celcius
10. Carbon Dioxide is taken in by trees in what process?
- growth
- deciduous
- photosynthesis
- respiration