Why will the colour of heated copper powder become black when air is passed over it?

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asked Jan 9, 2018 in Chemistry by sforrest072 (157,439 points) 60 409 936
Why will the colour of heated copper powder become black when air is passed over it?

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answered Jan 9, 2018 by faiz (82,347 points) 6 6 11
selected Jan 24, 2018 by Vikash Kumar
 
Best answer

When copper powder is heated in the presence of air, black copper oxide is formed.

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