character: Marie Curie
topic: Discovery of Radioactivity
grade: 9
subject: Chemistry
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character: Chemical Reactions
topic: Exothermic and Endothermic Processes
grade: 9
subject: Chemistry
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character: Thermal Energy
topic: Effects of Temperature on Reaction Rates
grade: 9
subject: Chemistry
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character: Thermodynamics
topic: Laws of Thermodynamics in Chemical Reactions
grade: 9
subject: Chemistry
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