ORGANIC CHEMISTRY Chapter 8 Mechanism SlOW Step I C=C、+HⅩ H-C-C fast Step 2 H-c-C- + X H-C-C-X Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 8 Mechanism Mechanism C C + H X H C C slow Step 1 H C C + X H C C X fast Step 2