Question

when copper powder is heated in china dish the surface of copper powder become coated with black colour . name the substance caused black coloured
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Answer 1

Answer:

the substance is copper oxide(CuO)

Explanation:

when copper is heated in China dish, copper reacts with oxygen in air to form copper oxide which has black colour and hence we see the copper powder being coated with black colour.

It is also necessary to write the reaction :

2Cu + O2 gives 2CuO

Answer 2

Answer:

hii mate✌️,

Explanation:

$\fcolorbox{aqua}{aqua}{the \: compound \: form \: is \: called \: copperoxide \: }$

$\huge \: cuo$

hope it helps you

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