Question

When hydrogen gas is passed over heated copper (II) oxide ,copper and steam are formed.Write the balanced chemical equation with physical states for this reaction.State what kind of chemical reaction is this?

Answer 1

Answer:

CuO+2H----------->Cu+H2O

(black solid) (gas) ---------->(solid) (steam)

Answer 2

Answer:

H2(g) + CuO gives Cu + H2O(g)