character: Professor Johnson
topic: Stoichiometry and Mole Concept
grade: 11
subject: Chemistry
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character: Ms. Thompson
topic: Balancing Chemical Equations
grade: 11
subject: Chemistry
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character: Dr. Lee
topic: Calculating Moles and Mass
grade: 11
subject: Chemistry
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character: Mr. Smith
topic: Introduction to Avogadro's Number
grade: 11
subject: Chemistry
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