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 ?
- AMetal is less reactive than metal .
- BMetal is more reactive than metal .
- CIt is not possible to determine the relative reactivities of the two metals.
- DMetals and 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.