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21 May, 18:09

What happens to the chemical identity of a substance during a physical change?

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  1. 21 May, 18:11
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    Nothing happens because a physical change only changes the appearance of the substance, whereas a chemical change transforms the substance into something completely different.

    i. e. (chemical change) wood + fire = ash

    (physical change) wood + axe = smaller pieces of wood
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