character: Ms. Thompson
topic: Chemical Reactions and pH
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Acids, Bases, and pH Scale
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: Balancing Chemical Equations
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: Introduction to Chemical Reactions
grade: 9
subject: Chemistry
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