character: Dr. Emily Chen
topic: Chemical Symbols and Their Importance in Hazard Recognition
grade: 11
subject: Chemistry
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character: Professor John Smith
topic: Understanding Chemical Safety and Labels
grade: 11
subject: Chemistry
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character: Ms. Sarah Johnson
topic: The Role of Chemical Symbols in Laboratory Safety
grade: 11
subject: Chemistry
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character: Mr. Alex Wright
topic: Interpreting Material Safety Data Sheets (MSDS)
grade: 11
subject: Chemistry
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