character: Mr. Johnson
topic: Balancing Chemical Equations
grade: 11
subject: Chemistry
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character: Ms. Parker
topic: Understanding the Law of Conservation of Mass
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Stoichiometry and Chemical Reactions
grade: 11
subject: Chemistry
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character: Mr. Lee
topic: Introduction to Chemical Balancing Techniques
grade: 11
subject: Chemistry
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