Events
03/24/2025 (Mon)
DChO Open Class for USNCO National 2025
8:30 pm
-
10:00 pm ET
ZOOM (click the event details for registration link)
03/24/2025 (Mon)
DChO Open Class for USNCO National 2025
Description: Dr. Chen will explain and summarize the most recent years of the National Exam Part I, focusing on the 2024 National Exam.
Time:...
8:30 pm
-
10:00 pm ET
ZOOM (click the event details for registration link)
03/01/2025 (Sat)
DChO Open Class for USNCO Local 2025
8:30 pm
-
10:00 pm ET
ZOOM (click the event details for registration link)
03/01/2025 (Sat)
DChO Open Class for USNCO Local 2025
Description: Dr. Chen will discuss and summarize the most recent years of the Local Exam, focusing on the 2024 Local Exam.
Time: March 1, 202...
8:30 pm
-
10:00 pm ET
ZOOM (click the event details for registration link)
02/19/2024 (Mon, Presidents' day)
Open Class 2 for USNCO 2024
8:30 pm
-
10:00 pm EST
ZOOM (click the event details for ZOOM link)
02/19/2024 (Mon, Presidents' day)
Open Class 2 for USNCO 2024
Description: Dr. Chen will explain the Local 2023 Original Exam problem by problem and summarize the challenges and trends.
Time: Feb 19, 202...
8:30 pm
-
10:00 pm EST
ZOOM (click the event details for ZOOM link)
01/15/2024 (Mon, MLK day)
Open Class 1 for USNCO 2024
8:30 pm
-
10:00 pm EST
ZOOM (click the event details for ZOOM link)
01/15/2024 (Mon, MLK day)
Open Class 1 for USNCO 2024
Description: Dr. Chen will explain the Local 2023 New Exam problem by problem and summarize the challenges and trends.
Time: Jan 15, 2024 08:...
8:30 pm
-
10:00 pm EST
ZOOM (click the event details for ZOOM link)
02/21/2023 (Tuesday)
Open Class for USNCO 2023
8:30 pm
-
9:30 pm EST
ZOOM (click the event details to watch the recording)
02/21/2023 (Tuesday)
Open Class for USNCO 2023
Description: Dr. Chen will use USNCO examples to summarize the computation and conceptual understanding of "Several Equations in the Applica...
8:30 pm
-
9:30 pm EST
ZOOM (click the event details to watch the recording)
Recording of Open Class for USNCO 2023
Description: Dr. Chen used USNCO examples to summarize the computation and conceptual understanding of "Several Equations in the Application of Thermodynamics": Arrhenius Equation, van't Hoff Equation, Clausius-Clapeyron Equation, and Nernst Equation. [Actually, they are all related!]
Time: Feb 21, 2023 08:30 PM in Eastern Time (US and Canada)
Level: Local Exam+
Recording of Open Classes in 2022
Open Class for Local 2022
Kahoot Practice to review Each Topic
Open Class for National 2022
Detailed Explanation to National 2021 Part I MCQs
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