character: Professor Reacto
topic: Chemical Reaction Hazards
grade: 11
subject: Chemistry
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character: Safety Sally
topic: Laboratory Safety Procedures
grade: 11
subject: Chemistry
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character: Dr. Chemistein
topic: Common Chemical Reactions and Their Risks
grade: 11
subject: Chemistry
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character: Hazard Harry
topic: Identifying Chemical Hazards in the Lab
grade: 11
subject: Chemistry
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