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A chemical combination of matter in definite (fixed) proportions is a _____. A. Pure Substance B. Physical mixture C. Pure Combination D. Physical Blend
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A chemical combination of matter in definite (fixed) proportions is a _____. A. Pure Substance B. Physical mixture C. Pure Combination D. Physical Blend

User Anusha Dharmasena
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A chemical combination of matter in definite (fixed) proportions is a Pure Substance. A pure substance is a type of matter that has a fixed composition and distinct properties. It consists of only one type of atom or molecule, and its composition does not vary.

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User J C
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