Chapter 7, Problem 48E

Balance each chemical equation.

a. ${\text{N}}_{\text{2}}{\text{H}}_{\text{4}}\left(l\right)\to {\text{NH}}_{\text{3}}\left(g\right)+{\text{N}}_{\text{2}}\left(g\right)$

b. ${\text{H}}_2\left(g\right){\text{+N}}_{\text{2}}\left(g\right)\to {\text{NH}}_{\text{3}}\left(g\right)$

c. ${\text{Cu}}_{\text{2}}\text{O}\left(s\right)\text{+C}\left(s\right)\to \text{Cu}\left(s\right)+\text{CO}\left(g\right)$

d. ${\text{H}}_{\text{2}}\left(g\right){\text{+Cl}}_{\text{2}}\left(g\right)\to \text{HCl}\left(g\right)$