Worksheet: Reactivity Series

In this worksheet, we will practice using the reactivity series to describe reactions of metals with water, acids, oxygen, hydrogen, and metal oxides.


When powdered metal A is mixed with an aqueous solution containing ions of metal B, a precipitate of metal B is formed. Based on this observation, what may be concluded about the relative reactivities of metals A and B?

  • AMetal A is less reactive than metal B.
  • BMetal A is more reactive than metal B.
  • CIt is not possible to determine the relative reactivities of the two metals.
  • DMetals A and B are equally reactive.


It is often necessary to paint or galvanize iron objects to protect them from corrosion. Aluminum, however, resists corrosion without the need for a protective coating. Why is the corrosion resistance of aluminum greater than that of iron?

  • AAluminum reacts with oxygen in the air to form a protective layer of aluminum oxide.
  • BAluminum is less reactive than iron so is corroded more slowly by oxygen in the air.
  • CWater in the air binds to aluminum to form a protective layer.
  • DAluminum is less reactive than oxygen so does not corrode in the presence of air.
  • EAluminum reacts with nitrogen in the air to form a protective layer of aluminum nitride.

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