Aluminum Is More Reactive Than Iron,yet It Is Used Today

question 32

Multiple Choice

Aluminum is more reactive than iron,yet it is used today for a variety of applications in which iron would corrode (cans,rain gutters,etc.) .The reason for the corrosion durability of aluminum is that

• A)aluminum does not react with oxygen.
• B)very unreactive aluminum oxide forms a thin layer on aluminum.
• C)aluminum does not undergo oxidation.
• D)all aluminum products are treated with a plastic coating.

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Definitions:

Unifying Phrase

A term or expression used to bring together various ideas or elements to form a cohesive whole.

Subordinate Clause

A clause that cannot stand alone as a sentence because it does not express a complete thought.

Compound Sentence

A sentence that contains at least two independent clauses, usually connected by a conjunction.

Independent Clause

A group of words that contains a subject and a verb and expresses a complete thought, capable of standing alone as a sentence.