The purpose of this video is to help second-year organic chemistry students review the concepts and questions that most frequently appear on standardized entrance exams, like the MCAT, DAT, PCAT, and GRE. In this video I\u27ll review addition and radical reactions: adding HX, H2O, ROH, and X2 to alkenes and alkynes, hydroboration/oxidation reactions with alkenes and alkynes, radical halogenations of alkanes, radical halogenations of alkenes with X2 and NBS, adding and adding HX to ethers. I\u27ll also help you to be able to spot carbocation rearrangements and identify kinetic and thermodynamic products. --Dr. Mike Christiansen from Utah State University