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3 December, 14:50

What are physical changes

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  1. 3 December, 18:46
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    A physical change does not change the chemical identity of an object.

    Ex: phase changes

    water is still H2O if it is in a liquid, solid or gaseous phase.

    Ex: changing size

    If i were to rip a piece of paper in half, both halves would still be paper
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