character: Dr. Smith
topic: Covalent vs. Ionic Bonds
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Chemical Bonding Basics
grade: 9
subject: Chemistry
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character: Ms. Lee
topic: Properties of Ionic Compounds
grade: 9
subject: Chemistry
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character: Mr. Thompson
topic: Understanding Covalent Bonds
grade: 9
subject: Chemistry
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