Question

When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are reactants.

Answer 1

The balanced equation for the reaction of hydrogen gas and copper oxide is written as follows:
 H₂ (g) + CuO (s) → u (s) + H₂O (g)

Reactants: H₂ and CuO are the reactants.