https://joechem.io/videos/61 for video on jOeCHEM and attached worksheet + solution (below video on jOeCHEM aka the link). In this video, we step through the mechanism of adding Br2 and Cl2 to alkenes as well as some practice with predicting the product in a few examples. We also look at the situation when Br2 and Cl2 is adding to a double bond when a slightly nucleophilic solvent is used (for example, H2O).
Comments: