Textbook Problem

. Write the formula for the missing reactant or product in each of the following chemical equations.

a. ${\text{CH}}_{\text{4}}\left(g\right)+{\text{Cl}}_{\text{2}}\left(g\right)\to \_\_\_\_\_\_\_+\text{HCI}\left(g\right)$   b. ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}{\text{CH}}_3\left(g\right)\to {\text{CH}}_3\text{CH}={\text{CH}}_{\text{2}}\left(g\right)+\_\_\_\_\_\_$ _____

c. ${\text{CHCl}}_{\text{3}}\left(l\right)+{\text{Cl}}_{\text{2}}\left(g\right)\to {\text{CCl}}_{\text{4}}\left(l\right)+\_\_\_\_\_\_$ _______