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15-03-2021
Chemistry

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Is changing the color of the coin from copper to silver a physical or chemical change?

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15-03-2021

Answer:

physical

Explanation:

The zinc (which was already silver) coated the penny. The NaOH dissolved the zinc. (that was what made the water murky) And small pieces of zinc adhered to the penny (coated) It was a physical change because no NEW color was created.

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