character: Chemical Equation Master
topic: Types of Chemical Reactions
grade: 9
subject: Chemistry
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character: Reaction Catalyst
topic: Balancing Chemical Equations
grade: 9
subject: Chemistry
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character: Reaction Explorer
topic: Types of Decomposition Reactions
grade: 9
subject: Chemistry
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character: Reaction Veteran
topic: Combustion Reactions and Their Products
grade: 9
subject: Chemistry
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