character: Mr. Smith
topic: Separation Techniques for Mixtures
grade: 9
subject: Chemistry
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character: Ms. Johnson
topic: Properties of Solutions
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Filtration and Distillation
grade: 9
subject: Chemistry
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character: Mrs. Green
topic: Chromatography Techniques
grade: 9
subject: Chemistry
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