Chemistry

6 August, 07:52

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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