Brown coloured copper powder on heating in air turns into black colour substance
Answers
Answered by
8
Cu(brown) gets oxidized to CuO(black) after coming in contact with air(oxygen) and when sufficient heat is provided for the reaction to occur.
Answered by
1
Answer:
This happens due to the formation of copper oxide.The black colour substance layering over the copper powder is mainly due to surface oxidation and the formation of a compound known as copper oxide.
This follows the basic chemical process of oxidation where copper reacts with oxygen present in the air on heating in order to form copper oxide.
Similar questions