U.S. National Chemistry Olympiad (USNCO)

This section is dedicated to preparing for the USNCO. Here you will find past exams, official study guides, and topic-specific materials to help you excel in both the Local and National exams.

• Official ACS Past Exams (PDF)

  A collection of official Local and National exams from previous years, provided by the American Chemical Society. The best way to prepare is to practice with real tests.

• USNCO Topic Outline (Google Doc)

  A detailed outline of all topics covered on the exam, from atomic structure to organic chemistry. Use this as a checklist for your study plan.