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

Other Sites for Chemistry Olympiad

Chemistry Olympiads Discord Server (CODS)

Anugrah Chemparathy's Competition Chemistry page

Anugrah Chemparathy's Competition Chemistry page

The Chemistry Olympiads Discord Server (CODS) is a community consisting of self-motivated students who enjoy competitive chemistry, introducing new students all around the world to Chemistry Olympiad.

Find out more

Anugrah Chemparathy's Competition Chemistry page

Anugrah Chemparathy's Competition Chemistry page

Anugrah Chemparathy's Competition Chemistry page

Top row (from left): Anugrah Chemparathy, Joseph Houck, Alex Li
Middle row (from left): Ananthan Sad

IChO gold medalist in 2020, current MIT undergraduate, who translated a lot Russian chemistry competition problems, compiled several mock tests for USNCO and camp selection, and wrote original problems as well.

Find out more

Edward Jin's Chemistry Competitions page

Anugrah Chemparathy's Competition Chemistry page

Edward Jin's Chemistry Competitions page

IChO gold medalist in 2019, current MIT undergraduate, who translated a lot Russian chemistry competition problems, compiled several mock tests for USNCO and camp selection, and wrote original problems as well.

Find out more

USNCO Quizzes by Andrew Ni

Washington University Chemistry Tournament

Edward Jin's Chemistry Competitions page

By reorganizing past exam problems by topic, this site aims to streamline the studying process, providing a convenient (and hopefully enjoyable) USNCO practice experience.

Find out more

MasterOrganicChemistry.com

Washington University Chemistry Tournament

Washington University Chemistry Tournament

A very useful and beautiful website for organic chemistry with a bunch of free stuff and more paid ones. 

Find out more

Washington University Chemistry Tournament

Washington University Chemistry Tournament

Washington University Chemistry Tournament

to be added



Find out more

Berkeley Chemistry Tournament

Berkeley Chemistry Tournament

Berkeley Chemistry Tournament

to be added



Find out more

Baltic Chemistry Olympiad

Berkeley Chemistry Tournament

Berkeley Chemistry Tournament

to be added



Find out more

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Berkeley Chemistry Tournament

reserved for you!

to be added



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Preparing for USNCO 2026?

Choose the path that fits you best:

1. Take Live Lessons with Dr. Chen – weekly class from late Aug to early Apr

  • Taking AP Chemistry in the fall --> Level 2
  • Completed AP Chemistry --> Level 3
  • Aiming for Winning National --> Level 4
  • Not sure which Level? --> take the diagnostic test

2. Prefer to begin right away? – Self-paced

Purchase recordings and class materials for Level 2, 3, or 4 and Summer Organic Chemistry in 2024-25 and start learning at your own pace!

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