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8 February, 03:56

What happens when a pure substance undergoes a chemical change

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  1. 8 February, 05:45
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    The substance changes completely. It undergoes a chemical reaction.

    Example is when you bake a cake. You cannot bring it bake to dough.
  2. 8 February, 05:52
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    The substances changes wholely/completely, undergoing a chemical change
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