Which of the following statements is incorrect?
A. Matter can be classified according to their composition.
B. Substances with same composition are called pure substances.
C. Mixtures are composed of compounds that mixed but not joined.
D. Properties of pure substances vary from one sample to another sample.
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Answers & Comments
Answer:
B.Substances with same composition are called pure substances.
Explanation:
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c. mixtures are composed of compounds not mixed but not joined.