[NEW] DCC 2024-25 Winter Exam is ready for Signup!
Detailed Info for DCC 2024-25 Winter Exam
Who?
When?
When?
- Any high school student who is passionate about Chemistry and problem-solving.
- Recommended for students preparing for the USNCO 2025 Local and National Exams.
- The Exams are free and open.
When?
When?
When?
- Level 2 Exam (mock Local): any consecutive 50 mins on Dec 14-22.
- Level 3 Exam (mock National Part I): any consecutive 50 mins on Dec 14-22.
- mirror the intensity and rigor of the real USNCO Exams.
How?
When?
How?
- Level 2 Exam: 24 Multiple-choice Questions.
- Level 3 Exam: 24 Multiple-choice Questions.
Topics covered in Winter Exam: Thermochemistry/Thermodynamics, Kinetics, Equilibrium, Redox/Electrochemistry.
Detailed Info for DCC 2024-25 Fall Exam
Who?
When?
When?
- Any high school student who is passionate about Chemistry and problem-solving.
- Recommended for students who are preparing for the USNCO 2025 Local and National Exams.
- The Exams are free and open (you don't need to take Dr. Chen's classes to take the exam).
When?
When?
When?
- Level 2 Exam (mock Local): any consecutive 40 mins on Oct 12-13.
- Level 3 Exam (mock National Part I): any consecutive 40 mins on Oct 12-13.
- mirror the intensity and rigor of the real USNCO Exams.
How?
When?
How?
- Level 2 Exam: 24 Multiple-choice Questions.
- Level 3 Exam: 24 Multiple-choice Questions.
Topics covered in Fall Exam: Stoichiometry/Solutions, IMFs/States of Matter, Atomic Structures/Periodicity, Molecular Structures/Bonding.
DCC 2024-25 Fall Exam & Solutions - Level 2&3
Note: Q23 in Level 3 was replaced in the annotations.
DChO Chemistry Competition 2023-24 concluded with thrilling results!
DCC 2023-24 Exam & Solutions
- by Dr. Chen and his team!
DCC 2023-24 Award Winners
DCC 2023-24 Part I Exam - Score Distribution
About the DChO Chemistry Competition (DCC) 2023-24
Who?
When?
When?
- Any high school student who is passionate about Chemistry and problem-solving.
- Recommended for USNCO 2024 National Exam qualifiers or 45+ in the Local 2024.
When?
When?
When?
- Any consecutive 90 mins on Mar 25-31 for Part I (MCQs).
- Designated consecutive 105 mins on Apr 1-5 for Part II (FRQs).
- Part I questions are explained at 8:30 PM EST on Apr 6 over ZOOM.
How?
When?
How?
- Part I: Web-based.
- Part II: Paper-based, the top 10 or 20% participants in Part I are invited to take Part II, graded by Dr. Chen and his team.
- mirror the intensity and rigor of the real USNCO Exams.
Awards for DCC 2023-24
Logistics
Logistics
Logistics
- A formula of Part I×1.25 + Part II is used to determine the award winners.
- The graded Part II paper will be provided to all invited participants.
- The Part I & Part II exam paper will be posted on the https://dcho.us website after the each test period.
Awards
Logistics
Logistics
- Gold Award: $125 discount for Dr. Chen's Advanced National Prep Class or $100 gift card.
- Silver Award: $80 discount or $60 gift card.
- Bronze Award: $50 discount or $30 gift card.
Note: the number of each award is determined by the total number of participants.
Ceremony
Logistics
Ceremony
- The award winners will be announced at the end of the Part I explanation session on Apr 6.
- The detailed results [with personal info removed] and stats will be posted on the https://dcho.us website afterward.
- A brief written explanation of Part I may be provided later.
Sign up for Module 2 - Level 2/3/4 class: mid-Oct to mid-Dec
Unleash Your Chemistry Potential! 🔬✨
🌟 Tailored Levels - Progress through Level 2, 3, or 4 based on your background and goals.
🌟 Small Class - Enjoy a more personalized and interactive learning experience.
🌟 Expert Mentors - Learn from the best and set yourself up for Olympiad success.
🌟 Engaging Content - Master challenging concepts and tackle Olympiad-level problems.
Don't just study. Excel.
🔗 Enroll now and ignite your passion!