character: Mrs. White
topic: Empirical and Molecular Formulas
grade: 12
subject: Chemistry
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character: Mr. Black
topic: Chemical Composition
grade: 12
subject: Chemistry
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character: Dr. Green
topic: Stoichiometry in Reactions
grade: 12
subject: Chemistry
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character: Ms. Blue
topic: Balancing Chemical Equations
grade: 12
subject: Chemistry
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