Question

A reddish brown colour metal,used in electrical wires,when poured and heated strongly in an open China dish,it's colour turns black.when hydrogen gas is passed over this black substance,it Regains its original colour.based on the above information answer the following questions.
(a)name the metal and the black coloured substance formed.
(b)write the balance chemical equations for the both the reactions.

Answer 1

The metal is copper (Cu) and the black colour substance is copper oxide (CuO)
2Cu + O2 = 2CuO
CuO + H2 = Cu + H2O
$= = = = >$

Answer 2

Hi

This is your answer.

(a.)The metal is copper and the black colour substance formed is copper (II) oxide which is black in colour.

(b.)See the image for balanced equation for both the reactions.
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Please mark it brainliest.