Other questions in this quiz

2. Why are alloys stronger:

  • the layers don't slide as the particles are different sizes
  • the layers slide and so last longer
  • the layers don't slide because the particles have more friction

3. What are alloys:

  • mixture of metals that are not as strong
  • mixture of metals that are harder and stronger than the original
  • parts on a car

4. Which metals are unreactive:

  • gold, silver and platinum
  • potassium, sodium, calcium, magnesium and aluminium
  • zinc, iron, tin, lead, copper

5. Oxidation is:

  • a gain of oxygen
  • a loss of oxugen


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