character: Mr. Thompson
topic: Chemical Reactions and Mass Conservation
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Stoichiometry in Chemical Reactions
grade: 11
subject: Chemistry
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character: Mr. Lee
topic: Balancing Chemical Equations
grade: 11
subject: Chemistry
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character: Dr. Carter
topic: Law of Conservation of Mass
grade: 11
subject: Chemistry
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