Other questions in this quiz

2. What is crude oil and natural gas made from?

  • The dead remains of land organisms
  • The old remains of chemicals
  • The dead remains of marine organisms
  • The dead remains of humans

3. Why does distillation work?

  • Because it has the right conditions
  • Because the liquids are mixed up
  • Because the liquids have different boiling points
  • Because the liquids are made of one pure substance

4. Why do large hydrocarbons have high boiling points?

  • They have longer hydrocarbon chains so more energy is needed to break the chains
  • As there are more weak intermolecular forces between the hydrocarbon molecules that are needed to be broken, more thermal energy is needed to break these forces thus giving it a high boiling point
  • As there are less weak intermolecular forces to break, we can just us a lot of thermal energy to break them
  • They just do

5. Small hydrocarbons...

  • are always solid
  • have a low boiling point and are gaseous
  • are often liquid
  • have a high boiling point

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