Khan/khan-exercises — pull request #18074 by JonHoye (2012-03-30 23:47:33+00:00)
Title: Organic chemistry

An exercise for the video for http://www.khanacademy.org/science/organic-chemistry/v/naming-simple-alkanes. It includes a new script utils/organic-chem.js, for generating random molecules for exercises and rendering them in one of two molecular structure formats. The related exercise exercises/naming_organic_molecules.html quizzes students on basic cycloalkanes and straight chain alkanes.