character: Mr. Johnson
topic: Chemical Bonding and Molecular Geometry
grade: 9
subject: Chemistry
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character: Ms. Smith
topic: Atomic Structure and Chemical Properties
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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character: Mrs. Carter
topic: States of Matter and Phase Changes
grade: 9
subject: Chemistry
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