Dr. Chen is proud to have coached 4 Campers and 19 High Honors/Honors in USNCO 2025!

Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad

Decoding of Chemistry Olympiad

Decoding of Chemistry OlympiadDecoding of Chemistry OlympiadDecoding of Chemistry Olympiad
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  • More
    • Home
    • About
    • USNCO
      • General Overview
      • FAQs
      • Learning Objectives
      • DCC
      • Annotated Solutions
      • Misconception
      • Laboratory
      • Study Camp
    • Classes
      • Introduction
      • Registration
      • Placement
      • Testimony
      • National Preps
      • Open Classes
      • Lecture Notes
    • Resources
      • APChem
      • Textbooks
      • IChO
      • CChO
      • Mendeleev
      • VChO
      • WUCT&BCT
      • Other Sites
    • Consultation
      • Newsletters
      • Email
      • Discord
      • WeChat 微信
  • Home
  • About
  • USNCO
    • General Overview
    • FAQs
    • Learning Objectives
    • DCC
    • Annotated Solutions
    • Misconception
    • Laboratory
    • Study Camp
  • Classes
    • Introduction
    • Registration
    • Placement
    • Testimony
    • National Preps
    • Open Classes
    • Lecture Notes
  • Resources
    • APChem
    • Textbooks
    • IChO
    • CChO
    • Mendeleev
    • VChO
    • WUCT&BCT
    • Other Sites
  • Consultation
    • Newsletters
    • Email
    • Discord
    • WeChat 微信

Looking for flexible, on-demand learning options? Check out our latest recorded classes! With our recorded lectures and materials, you can learn at your own pace and on your own schedule.

Purchase the Recorded Lectures/Materials in 2022-23

Season 1

good for AP and post-AP students to do self-study

much more than just recordings: 10 lecture notes/annotations, problem sets/answer keys, etc.

10 sessions (90 mins each), topics covered are:

  • Advanced Stoichiometry
  • Atomic Structures/Periodicity
  • Molecular Structures/Bonding
  • IMFs and States of Matter

Purchase with a discounted price of $300

Season 2

good for AP and post-AP students to do self-study

much more than just recordings: 10 lecture notes/annotations, problem sets/answer keys, etc.

10 sessions (90 mins each), topics covered are:

  • Thermodynamics
  • Kinetics
  • Equilibrium and LCP
  • Acid-base and Solubility Equilibrium

Purchase with a discounted price of $300

Season 3

good for AP and post-AP students to do self-study

much more than just recordings: 8 lecture notes/annotations, problem sets/answer keys, etc.

8 sessions (90 mins each), topics covered are:

  • Electrochemistry
  • Descriptive Chemistry
  • Laboratory
  • Organic/Biochemistry

Purchase with a discounted price of $300
Great opportunity to boost your performance in the USNCO!

S4 - Spring 2023

Contents: summarize and review the Learning Objectives of all 10 topics using the USNCO MCQs as examples.

Time: 8:30-10 PM ET on Sunday

Cost: $60/session (1.5 hours)

Prerequisites: took Season 1-3 or score 35+ in Local 2015/16 (NOT for beginners)

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To be Achived

USNCO National Prep 2022

The national prep 2022 includes eight live sessions, and will cover the most challenging and advanced topics in the national exam, such as descriptive chemistry, organic chemistry, etc. 

Class starts on Mar 30, 2022 with recordings provided by request! 

Full refunds guaranteed by Apr 3, 2022.

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Interested in Chemistry Olympiad Classes for 25–26?

Choose the path that fits you best:

  1. Self-Study + Diagnostic
    Study Honors or AP Chemistry on your own, then take Dr. Chen’s diagnostic tests to determine fall placement. Recommended textbooks
  2. Summer Class with Dr. Chen
    Take an intensive AP Chemistry+ or Organic Chemistry Class this summer with Dr. Chen to prepare for Level 2, 3, or 4 Olympiad training in the fall.
  3. Start Now – Self-Paced
    Prefer to begin right away? Purchase recordings and materials for Level 2, 3, or 4 from 2024-25 and start learning at your own pace!

Sign up for Dr. Chen's Summer Class for AP Chemistry+ or Organic Chemistry