Resources

Notes on Atkins: Chemical Principles, by CODStaff

UK resource with exceptional inorganic chemistry

Open source chemistry textbooks

Compilation of every CODS Original POTD

Link to U.S. National Chemistry Olympiad exams

Problem base of USNCO exams, sorted by topic

USNCO Exam Walkthroughs

Official CODS Youtube with Staff Lectures

Accurate information on the properties of any chemical.

Recommended non-beginner general chemistry textbook