Multiple Choice
Which of the following best describes the way minerals are classified?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following best describes the characteristics of a mixture?
A
A mixture always has a uniform composition throughout and cannot be separated into its components.
B
A mixture is formed by chemical reactions and its components lose their individual properties.
C
A mixture is a pure substance with a fixed composition and distinct chemical properties.
D
A mixture consists of two or more substances that are physically combined and can be separated by physical means.
Verified step by step guidance1
Understand the definition of a mixture: A mixture consists of two or more substances that are physically combined, not chemically bonded.
Recognize that in a mixture, each component retains its own chemical properties and identity.
Note that mixtures can be separated into their individual components by physical methods such as filtration, distillation, or evaporation.
Contrast mixtures with pure substances, which have a fixed composition and cannot be separated by physical means.
Identify that mixtures do not always have a uniform composition throughout (heterogeneous mixtures), but some mixtures can be uniform (homogeneous mixtures).
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