The United States National Chemistry Olympiad (or USNCO) is a contest held by the American Chemical Society (ACS) used to select the four-student team that represents the United States at the International Chemistry Olympiad (IChO).
Typically, the topics are, in order, descriptive chemistry/laboratory techniques, stoichiometry, gases/liquids/solids, thermodynamics, kinetics, equilibrium, electrochemistry, electronic structure/periodic trends, bonding theories, and organic chemistry.
There is no penalty for guessing; a student's score is equal to the number of questions answered correctly.
The topics of each question in the recent part II’s of USNCO usually follows the following format: Q1: Stoichiometry Q2: Equilibrium Q3.
Organic Chemistry Beginning in 1994, the lab practical was added to the National Exam.
Past tasks have included chromatography, titration and qualitative analysis, and 90 minutes are allotted to complete the two experiments.
The purpose of the USNCO is to stimulate all young people to achieve excellence in chemistry.