LEAP 2025 Science Grade 8 Practice Questions - LEAP 2025 Science - Grade 8 Exam

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When solid ammonium nitrate dissolves in water inside an instant cold pack, the temperature of the pack drops from 24°C to 8°C. What process explains this temperature change?

An exothermic process in which thermal energy is released into the surroundings An endothermic process in which energy is absorbed from the surroundings A combustion reaction that generates light and intense heat A nuclear fusion reaction that creates heavier elements

Correct Answer:

An endothermic process in which energy is absorbed from the surroundings

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