Hydrocarbons are the basic building blocks of organic compounds, but many organic compounds contain oxygen, nitrogen, sulfur, or halogens. These can be thought of as taking a hydrogen’s place somewhere on the hydrocarbon skeleton. This provides the basis for naming substituted hydrocarbons. This PowerPoint presentation examines the structure of halogenated hydrocarbons, alcohols, aldehydes, ketones, organic acids, ethers, esters, and amines, and explains how to name them. Worksheets on this topic are available free of charge on my website at www.evanschemistrycorner.com.