Multiple Choice
In the context of classification of matter, aluminum foil is best classified as which of the following?
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3. Matter and Energy
Classification of Matter
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In the classification of matter, which statement best describes the difference between an element and a compound?
A
An element is a homogeneous mixture, whereas a compound is a heterogeneous mixture.
B
An element can be separated into simpler substances by chemical means, whereas a compound cannot be separated by chemical means.
C
An element contains molecules, whereas a compound contains only atoms.
D
An element is made of only one type of atom, whereas a compound consists of two or more different elements chemically bonded in a fixed ratio.
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