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7 August, 12:00

What are some ways you can determine a chemical change has occured

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  1. 7 August, 13:11
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    1. Color changes.

    The Statue of Liberty, though known for its green color, was originally covered in a layer of copper. After a redox (reduction-oxidation reaction) the color changed due to a chemical change.

    2. Gas Production

    3. Light Produced

    Light sticks work as the result of a chemical reaction between hydrogen peroxide and phenol oxalate ester.

    4. Temperature Changes

    5. Volume Change
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