Need help with Chemistry? Whether you're in high school, college, AP or IB courses, these videos can help! They are also targeted to students studying for the AP Test, SAT, MCAT, DAT, and OAT exams, as well as students in nursing, nutrition, pre-med and pre-vet programs. We'll cover the introductory topics patiently and clearly, using lots of examples, analogies and practice problems. The main topics covered in this library are: Significant Figures, Scientific Notation, Density, Stoichiometry, Nuclear Chemistry, VSEPR Theory, Atomic Structure, Covalent and Ionic Bonding, Thermochemistry, and Gases.