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Which of the following is a true statement for a pure substance or a compound? a. The elements in a compound are present in a definite proportion by weight. b. It can be broken down into a simpler type of matter (elements) by chemical means but not by physical means. c. Properties of a compound are an average of the properties of its constituents. |
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Answer» The ELEMENTS in a COMPOUND are PRESENT in a definite PROPORTION by weight. Explanation: |
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