character: Emily
topic: Stoichiometry in Environmental Science
grade: 12
subject: Chemistry
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character: Professor Green
topic: Chemical Reactions in Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Blue
topic: Molecular Interactions in Water Quality
grade: 12
subject: Chemistry
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character: Ms. Brown
topic: Balancing Chemical Equations for Pollution Control
grade: 12
subject: Chemistry
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