dontreal94 dontreal94

28-02-2019
Chemistry

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A change in color, such as rusting of metal, is a sign that

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kochiyusuf kochiyusuf

28-02-2019

Iron undergoes a chemical reaction called oxidation to form rust, or iron oxide. ... Copper forms a turquoise colored oxide and silver forms a black oxide. In both cases you know that a chemical reaction has taken place because of the color change.

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