Suppose That a Particular Chemical Substance a Is "Pure" [Contains

question 36

Multiple Choice

Suppose that a particular chemical substance A is "pure" [contains no "impurities"], and that it can be chemically decomposed into two other pure materials B and C. What conclusion can be draw from this?

• A) A must be a chemical compound.
• B) B and C must be chemical compounds.
• C) B and C must be elements.
• D) A must be an element.
• E) Nonsense-- it is impossible to decompose a pure substance into two other materials.

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