character: Chemistry Wiz
topic: Chemical Reactions and Energy Changes
grade: 9
subject: Chemistry
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character: Energy Explorer
topic: Thermochemistry and Reaction Energy
grade: 9
subject: Chemistry
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character: Reactant Ranger
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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character: Catalyst Cat
topic: Effects of Catalysts on Energy Changes
grade: 9
subject: Chemistry
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