Question

if copper metal is heated over a flame it developes a coating what is the colour and composition of coating . write a reaction involved

Answer 1

Answer:the colour of the coating is black as copper oxides to form copper oxide

Explanation:Cu+O=CuO

Answer 2

Answer:

its colour is black due to formation of its oxide(CuO)

the reaction taking place is

2Cu + O2 →2CuO