Question

ammonia gas is passed over hot copper oxide?

Answer 1

when ammonia reacts with hot copper oxide it gives out nitrogen (N2).
3cuo + 2NH3==>3Cu +N2+ 3H2O

Answer 2

The balanced chemical equation is-

$3CuO+2NH_3\rightarrow 3Cu+3H_2O+N_2$.

• When ammonia gas is passed over heated copper oxide copper metal along with water and nitrogen gas is produced.
• The balanced chemical equation is as follows-
• $3CuO+2NH_3\rightarrow 3Cu+3H_2O+N_2$.
• In this reaction, three moles of CuO reacts with two moles of ammonia to form three moles of Cu metal along with three moles of water and one mole of nitrogen gas.