Image sources: Organic Chemistry by pixabay user Mariolayaquerevalu Used under CC0
Khan Academy - Organic Chemistry
Bronsted-Lowry and Arrhenius definitions of acids and bases.
ChemSurvival Enterprizes - Organic Basics
Professor Davis gives a short introduction to the structures and names (both common and IUPAC) of some common alkanes. In this micro-lecture he introduces the structure and formulas of some simple alkanes and discusses how we cope with naming the tremendous library of alkane isomers using the IUPAC nomenclature system.
bannanaiscool - Organic Chemistry I
In this clip the Chemguy reviews the various diagrams in organic chemistry.