character: Reactivity Ranger
topic: Stoichiometry Basics
grade: 9
subject: Chemistry
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character: Chemical Crusader
topic: Balancing Chemical Equations
grade: 9
subject: Chemistry
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character: Molecular Master
topic: Compounds and Formulas
grade: 9
subject: Chemistry
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character: Atom Adventurer
topic: Mole Concept and Avogadro's Number
grade: 9
subject: Chemistry
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