The chemistry archive contains legacy chemistry content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out Middle School …

Learn high school chemistry using videos, articles, and NGSS-aligned practice. Explore the fundamentals of atomic structure, chemical bonding, chemical reactions, thermochemistry, …

Learn AP Chemistry using videos, articles, and AP-aligned practice. Review the fundamentals of atomic structure, intermolecular forces and bonding, chemical reactions, kinetics, …

Unit 1: Atoms, compounds, and ions About this unit This unit is part of the Chemistry archive. Browse videos and articles by topic. For our most up-to-date, mastery-enabled courses, check …

Learn chemistry using videos, articles, and NGSS-aligned practice exercises. Explore the world of elements, compounds, and mixtures, learn about the periodic table, understand physical …

This course has videos and articles covering many of the topics in AP Chemistry. More material, including practice, is also available in our new course, AP Chemistry beta.

Explore college-level organic chemistry topics with Sal and Jay on Khan Academy, assuming basic high school or college chemistry knowledge.

A big picture view of chemistry and why it is fascinating. How chemistry relates to math and other sciences.

Learn chemistry using videos, articles, and NGSS-aligned practice exercises. Explore the world of elements, compounds, and mixtures, learn about the periodic table, understand physical …

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of …