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When matter and energy change forms within a closed system, A. the total amount of matter changes, but the total amount of energy does not. B. the total amount of energy changes, but the total amount of matter does not. C. the total amount of both matter and energy changes. D. the total amount of both matter and energy does not change.
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When matter and energy change forms within a closed system, A. the total amount of matter changes, b...
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