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16 November, 16:10

Which of the following represents a chemical change to matter? A. digestion of food B. melting an ice cube C. shredding paper D. crushing an ice cube

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  1. 16 November, 16:17
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    The answer is A. digestion of food. The chemical change to matter means that the molecule structure has been destroyed. For B, C and D. the matter are still ice, paper and ice. So they are physical change.
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