Question

when hydrogen gas is passed over heated copper II oxide copper and steam are formed write the balanced chemical equation for the reaction and state the substance oxidized and be the substance reduced is the reaction​

Answer 1

Copper(II) oxide can be reduced byhydrogen and its formula determined. Natural gas (mainly methane) can also be used as a reducing agent, but the reaction is much slower. ... Natural gas (mainly methane) can also be used as a reducing agent, but the reaction is much slower.

Answer 2

Answer :-

$\bold{CuO + H_{2} -> Cu + H_{2}O}$

• CuO = Copper oxide
• H2 = Hydrogen
• Cu = Copper
• H2O = Water

⇒ Redox Reaction take place in which one get reduced and one get oxidised.

⇒ Copper oxide is reduced to Copper

⇒ Hydrogen is oxidised to Hydrogen

⇒ Oxidation in which gain of oxygen or loss of hydrogen occurs.

⇒ When hydrogen (H2) gas is passed through Copper oxide (CuO) the black coating will turn brown.