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6. What is an advantage of landfill sites?
- Polymers burn well
- Polymers decompose easily
- They are cheap
- The polymers lasts longer
7. What is the formula for combustion?
- alkane+water = carbon dioxide+oxygen
- alkane+oxygen = carbon dioxide+water
- alkane+carbon dioxide = oxygen+water
- alkene+water = carbon dioxide+water
8. What is the formula for hydration?
- Ethene+Steam =(catalyst)= Ethanol
- Ethene+Yeast =(catalyst)=Ethanol
- Ethane+Yeast=(catalyst)=Ethanol
- Ethane+Steam=(catalyst)=Ethanol
9. Hydrogenation involves what?
- Double bonds being converted to single bonds
- Single bonds being converted to double bonds
- Hydrogen being added
- Carbon being added
10. The chemical symbol for quicklime is?
- CaCO3
- CaO
- Ca(OH)2
- Ca(OH)3
11. What is the chemical symbol for propane?
12. What is the formula for fermentation?
- sugar =(yeast)= ethanol+carbon dioxide
- ethanol =(yeast)= sugar+carbon dioxide
- carbon dioxide =(yeast)= sugar+ethanol
- sugar = ethanol+yeast
13. What is a disadvantage of fermentation?
- It produces CO2
- Its renewable
- Its cheap
- Its fast
14. What is the scientific name for the limestone cycle process?
- Cracking
- Thermal decompostition
- Fractional Distillation
- Fermentation
15. What is the name for a small alkene?
- Hydrocarbons
- Alkanes
- Monomers
- Polymers
16. What is the formula for an alkane?
- CnH2n-2
- CnH2n+2
- CnHn+2
- CnH2n
17. Why is the tail of the emulsifier attracted to the oil?
- Its hydrophobic
- Its electrophobic
- Its hydrophilic
- Its electrophilic
18. Which of these metals is a low reactivity metal in the reactivity series?
- Iron
- Silver
- Zinc
- Potasium
19. An emulsifier is something that?
- Doesnt dissolve
- Mixes together
- Doesnt mix together
- Dissolves
20. What is a disadvantage of limestone quarrying?
- Neutralises acidic soil
- Creates jobs
- Destroys habitats
- Provides raw materials
