character: Mr. Chen
topic: Understanding NMR: Principles and Techniques
grade: 9
subject: Chemistry
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character: Mr. Chen
topic: Introduction to Spectroscopy
grade: 9
subject: Chemistry
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character: Mr. Chen
topic: Chemical Bonding and Molecular Structure
grade: 9
subject: Chemistry
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character: Mr. Chen
topic: Basics of Organic Chemistry
grade: 9
subject: Chemistry
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