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Multiple Choice
Which of the following statements is true about heterogeneous mixtures?
A
The components are not uniformly distributed throughout the mixture.
B
They have a fixed composition and definite properties.
C
They cannot be separated by physical means.
D
They consist of only one type of atom or molecule.
Verified step by step guidance
1
Understand the definition of a heterogeneous mixture: it is a mixture where the components are not uniformly distributed, meaning you can often see different parts or phases within the mixture.
Recall that heterogeneous mixtures do not have a fixed composition or definite properties because the proportions of components can vary throughout the mixture.
Recognize that heterogeneous mixtures can be separated by physical means, such as filtration, decantation, or using a magnet, because their components remain physically distinct.
Note that mixtures, including heterogeneous ones, consist of two or more different substances, so they do not consist of only one type of atom or molecule; that description fits pure substances.
Conclude that the true statement about heterogeneous mixtures is that their components are not uniformly distributed throughout the mixture.