There are so many reactions to learn in Organic Chemistry that it is sometimes hard to know where to even begin. When you study reactions of alkenes, for example, each has several considerations that you need to know in order to get the right product. What groups add to the alkene? Is addition Markovnikov or anti-Markovnikov? Is addition syn- or anti-? Can the structure rearrange during the course of the reaction? What is the arrow-pushing mechanism?...