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 is mixed with an aqueous solution containing ions of metal , a precipitate of metal is formed. Based on this observation, what may be concluded about the relative reactivities of metals and ?
- AIt is not possible to determine the relative reactivities of the two metals.
- BMetals and are equally reactive.
- CMetal is more reactive than metal .
- DMetal is less reactive than metal .
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 is less reactive than oxygen so does not corrode in the presence of air.
- BAluminum is less reactive than iron so is corroded more slowly by oxygen in the air.
- CAluminum reacts with nitrogen in the air to form a protective layer of aluminum nitride.
- DWater in the air binds to aluminum to form a protective layer.
- EAluminum reacts with oxygen in the air to form a protective layer of aluminum oxide.