character: Mr. Lee
topic: Safety Protocols for Handling Chemicals under Environmental Regulations
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Chemical Waste Management and Disposal Guidelines
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Understanding Material Safety Data Sheets (MSDS)
grade: 11
subject: Chemistry
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character: Mr. Chen
topic: Emergency Response Procedures in the Chemistry Lab
grade: 11
subject: Chemistry
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