a reddish brown metal used in electical wires when powderd and heated turns black when hydrogen gas is passed it regain its orginal colour name the metal and brown color substance write a balanced chemical equation for the reactions
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the reddish brown coloured metal is copper metal (Cu).
When copper metal is heated in air, it forms black coloured compound. This black coloured compound is copper oxide or copper (II) oxide (CuO).
2Cu + O2 -------heat-------> 2CuO
When copper metal is heated in air, it forms black coloured compound. This black coloured compound is copper oxide or copper (II) oxide (CuO).
2Cu + O2 -------heat-------> 2CuO
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