character: Dr. Smith
topic: Chemical Reactivity and Valence Electrons
grade: 11
subject: Chemistry
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character: Professor Johnson
topic: Introduction to Chemical Bonds
grade: 11
subject: Chemistry
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character: Ms. Williams
topic: Periodic Table and Element Properties
grade: 11
subject: Chemistry
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character: Mr. Brown
topic: Ionic vs Covalent Compounds
grade: 11
subject: Chemistry
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