character: Ms. Sarah Johnson
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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character: Mr. David Smith
topic: Balancing Chemical Equations
grade: 9
subject: Chemistry
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character: Dr. Emily Carter
topic: Types of Reactions: Synthesis and Decomposition
grade: 9
subject: Chemistry
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character: Mrs. Linda Brown
topic: Endothermic and Exothermic Reactions
grade: 9
subject: Chemistry
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