copper roof turning green is a physical change or chemical change
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Explanation:
Copper turns green because of chemical reactions with the elements. Just as iron that is left unprotected in open air will corrode and form a flaky orange-red outer layer, copper that is exposed to the elements undergoes a series of chemical reactions that give the shiny metal a pale green outer layer called a patina.
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Answer:
Chemical change
Explanation:
In this case copper is corroded due to its exposure to moisture and oxygen. When copper is corrroded it turns green in color
EQUATION-
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