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Multiple Choice
In the classification of matter, how does a compound differ from an element?
A
A compound can be separated into simpler substances by physical methods (such as filtration), whereas an element can only be separated by chemical methods.
B
A compound contains only one type of atom, whereas an element contains two or more types of atoms chemically bonded.
C
A compound is always a mixture with variable composition, whereas an element always has variable composition.
D
A compound is made of two or more different elements chemically bonded in fixed ratios, whereas an element consists of only one type of atom.