Multiple Choice
Which of the following statements is true about all alloys?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following is a property of every heterogeneous mixture?
A
The mixture consists of only one phase.
B
The components cannot be separated by physical means.
C
The mixture has a fixed composition.
D
The composition is not uniform throughout the mixture.
Verified step by step guidance1
Understand the definition of a heterogeneous mixture: it is a mixture where the components are not uniformly distributed, meaning different parts of the mixture have different compositions.
Recall that a heterogeneous mixture consists of two or more phases, so it does not have only one phase throughout.
Recognize that the components of a heterogeneous mixture can usually be separated by physical means, such as filtration or decanting, because the different parts are physically distinct.
Note that a heterogeneous mixture does not have a fixed composition; the ratio of components can vary in different samples or parts of the mixture.
Conclude that the key property of every heterogeneous mixture is that its composition is not uniform throughout the mixture.
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