Other questions in this quiz

2. What is crystallisation?

  • The separation of a dissolved solid from a solution, when the solid is much more soluble in hot solvent than in cold
  • Melting a compound before we can electrolyse it

3. What is distillation?

  • The separation of a liquid from a solution
  • Replacement of some or all of hydrogen in a substance

4. What is a mixture?

  • An impure substance made from different elements or compounds
  • A pure substance made from different elements

5. What will the experiment show?

  • Both air and bromine particles are moving randomly and there re large gaps between the particles: therefore, they can easily mix together
  • They are very fast


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