Hi, what do you want to do?
Khan Academy
Khan Academy: Halogenation and Ozonolysis of Alkynes
Understand the reaction of an alkene with a diatomic halogen (halogenation) or with ozone (ozonolysis). [7:20]
Khan Academy
Khan Academy: Halohydrin Formation
Reaction of an alkene with a diatomic halogen and water, converting the double bond to a single bond with halogen and hydroxyl substituents. [12:44]