character: Mr. John Smith
topic: Mole Concept and Its Applications
grade: 9
subject: Chemistry
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character: Ms. Emily Johnson
topic: Understanding Avogadro's Number
grade: 9
subject: Chemistry
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character: Dr. Alice Brown
topic: Stoichiometry in Chemical Reactions
grade: 9
subject: Chemistry
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character: Mr. Michael Davis
topic: Calculating Moles from Mass
grade: 9
subject: Chemistry
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