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10 February, 11:13

Does anyone know methods that scientists use to determine if a change was physical or chemical?

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  1. 10 February, 12:18
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    If there is no change in the chemical properties, it is a physical change.

    Methods they use to determine physical changes:

    -State in Matter change

    -Difference of Size

    If there is a change in the chemical composition, it is a chemical change.

    Methods they use to determine chemical changes:

    -Bubbling

    -Color change

    -Solid formation from mixing

    -Heat given off

    -New substance with different properties.
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