Ohio State University
Ohio State University: Lipids and Carbohydrates
An introduction to these chemical families. Diagrams are easy to understand and the text explains basic concepts well.
Ohio State University
Ohio State University: Proteins and Nucleic Acids
This information can be used for exam review or as an introduction. It presents a good overview of the topics with charts, graphs, links, and a quiz.
Khan Academy
Khan Academy: Isotopes and Mass Spectrometry
Tutorial explains isotopes, atomic weight and how isotopes can be detected using mass spectrometry. Examples are given.
Khan Academy
Khan Academy: Dalton's Atomic Theory
Resource investigates the beliefs of Dalton's atomic theory which consists of four parts. Which points do we still use today, and what have we learned since Dalton?
Khan Academy
Khan Academy: Molecules and Compounds
Article defines and explains compounds which are either ionic or covalent and molecules which are the simplest unit of a covalent compound. Molecules can be represented in many different ways.