What is one characteristic of a sample of matter that indicates it is a pure substance? a. it can be separated using by a physical means, such as filtering. b. the components in a pure substance do not have to be in definite ratios. c. if the composition of a sample varies, the sample is a pure substance. d. if the composition of a sample is fixed, the sample is a pure substance?
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What is one characteristic of a sample of matter that indicates it is a pure substance? a. it can b...
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