# Given the reaction between 1-butene and chlorine gas: C_4H_8 + Cl_2 -> C_4H_8CI_2. What type of chemical reaction is represented by this equation?

${H}_{2} C = C H C {H}_{2} C {H}_{3} + C {l}_{2} \left(g\right) \rightarrow {H}_{2} C l C - C \left(H\right) C l C {H}_{2} C {H}_{3}$