what change do you observe on the surface of copper when its powder is heated
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Answer:
When copper is heated, it decomposes to form copper oxide and carbon dioxide. It is an endothermic reaction, which means that it absorbs heat. When heated, copper is easily bent or molded into shapes.
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Answer: A black coating
Explanation: When copper is heated in the presence of oxygen the following reaction takes place
2Cu + O2 = 2CuO
(Black)
the black coating is that of cuprous oxide.
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