Why will the colour of heated copper powder becomes black when air is passed over it?
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Answered by
57
Black
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The colour will be black
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》Because, when it is heated then there is a reaction with the oxygen and this reaction became a black.
》And when it is react with oxygen then the copper oxide form and this is black
----------------------------------------------------------------------------------------------------------------
The colour will be black
===================================================
》Because, when it is heated then there is a reaction with the oxygen and this reaction became a black.
》And when it is react with oxygen then the copper oxide form and this is black
Answered by
83
The color of the heated copper powder becomes black when air is passed over it because of its reaction with oxygen i.e. air.
When it reacts with oxygen it forms copper oxide which is black in color. If however, the metal is allowed to react with hydrogen, the black copper oxide will turn back to its red metallic color and also result in formation of water.
Yet again, if air is passed over copper, the metal will get oxidized again, forming black copper oxide.
When it reacts with oxygen it forms copper oxide which is black in color. If however, the metal is allowed to react with hydrogen, the black copper oxide will turn back to its red metallic color and also result in formation of water.
Yet again, if air is passed over copper, the metal will get oxidized again, forming black copper oxide.
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