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10 September, 18:38

A substance undergoes change. Which Of the following indicates that the change was a chemical change?

a. the substance changed state.

b. the molecules of the substance changed

c. the substance changed shape.

d. the density of the substance changed.

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Answers (1)
  1. 10 September, 19:24
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    The answer is b the molecules of the substance changed
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