Prep 101's MCAT Chemistry Formula Sheet, good for Chem 12/UT Chem. Contains acid-base equilibria, kinetics, thermodynamics, electrochemistry, etc. [PDF]
A compound library, online molecule building kit, notes for first semester general chemistry, and tutorials and quizzes to build and test your knowledge.
Univ of Calgary site that introduces basic organic nomenclature and functional groups with great 3D molecular images and practice questions to test and expand your knowledge
A Libre Textbook on Organic Chemistry ... nomenclature, properties, reactions, method of synthesis, etc ... There is no need to sign in, but you could.
