Multiple Choice
Which of the following is a substance composed of two or more components?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following best describes a mixture?
A
A pure substance composed of two or more elements chemically bonded together
B
A homogeneous material with a fixed composition throughout
C
A combination of two or more substances in which each substance retains its own chemical identity
D
A substance that cannot be separated into simpler substances by physical means
Verified step by step guidance1
Understand the definition of a mixture: it is a combination of two or more substances where each substance retains its own chemical identity and properties.
Recognize that in a mixture, the components are not chemically bonded, unlike in compounds where elements are chemically combined.
Recall that mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition), but the key point is that the substances keep their individual characteristics.
Compare the given options to these definitions: a pure substance with chemically bonded elements describes a compound, not a mixture.
Identify that the correct description of a mixture is 'a combination of two or more substances in which each substance retains its own chemical identity.'
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