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When molecules are heated, they gain kinetic energy, which causes them to move more rapidly. This increased motion can lead to changes in state, such as solids becoming liquids (melting) or liquids becoming gases (evaporation). As the temperature rises, the intermolecular forces that hold the molecules together can weaken, allowing for greater molecular movement and interaction. Ultimately, heating can significantly alter the physical and chemical properties of a substance.

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4w ago

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