character: Mr. David Lee
topic: Emergency Procedures in a Chemistry Lab
grade: 11
subject: Chemistry
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character: Mr. David Lee
topic: Chemical Spill Response
grade: 11
subject: Chemistry
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character: Mr. David Lee
topic: Safety Equipment in Chemistry Labs
grade: 11
subject: Chemistry
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character: Mr. David Lee
topic: First Aid Procedures for Chemistry Incidents
grade: 11
subject: Chemistry
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