Unsymmetrical Addition Reactions Markovnikov’s Rule For double bonds that have unequal numbers of hydrogen atoms attached. For unsymmetrical reactants such as HX and HOH The hydrogen of the reactant goes to the carbon of the double bond that already has the most hydrogen atoms. “the rich get richer” The -X or the -OH go the other carbon (the one with the least amount of hydrogen
3. Halogenation Reaction Alkene + HX --> haloalkane HCl molecule adds to carbons with double bond.