Multiple Choice
Which of the following best explains why some mixtures cannot be classified as solutions?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following best describes a heterogeneous mixture?
A
A substance composed of two or more elements chemically bonded in fixed proportions.
B
A mixture in which the composition is uniform throughout and the individual components are not visible.
C
A pure substance that cannot be separated into simpler substances by physical means.
D
A mixture in which the components are not uniformly distributed and can be visually distinguished.
Verified step by step guidance1
Step 1: Understand the definition of a heterogeneous mixture. It is a mixture where the components are not uniformly distributed, meaning you can see different parts or phases distinctly.
Step 2: Compare this with a homogeneous mixture, where the composition is uniform throughout and individual components are not visible.
Step 3: Recognize that a pure substance is made of only one type of particle and cannot be separated by physical means, which is different from a mixture.
Step 4: Identify that a substance composed of two or more elements chemically bonded in fixed proportions is a compound, not a mixture.
Step 5: Conclude that the best description of a heterogeneous mixture is one where the components are not uniformly distributed and can be visually distinguished.
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