Multiple Choice
Which term is defined as anything made up of atoms that has mass and takes up space?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following is NOT true about mixtures?
A
The components of a mixture retain their individual properties.
B
Mixtures always have a fixed composition.
C
Mixtures can be either homogeneous or heterogeneous.
D
Mixtures can be separated into their components by physical means.
Verified step by step guidance1
Step 1: Understand the definition of a mixture. A mixture is a combination of two or more substances where each substance retains its own chemical identity and properties.
Step 2: Recognize that mixtures do not have a fixed composition. The proportions of components in a mixture can vary, unlike compounds which have a fixed ratio of elements.
Step 3: Identify that mixtures can be classified as homogeneous (uniform composition throughout) or heterogeneous (non-uniform composition).
Step 4: Recall that mixtures can be separated into their individual components by physical methods such as filtration, distillation, or chromatography, because the components retain their physical properties.
Step 5: Conclude that the statement 'Mixtures always have a fixed composition' is NOT true, since mixtures can have variable compositions.
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