Asap 1. what happens to particles when a substance gains energy and changes state? 2. what happens to the energy that is lost when water freezes? 3. how does the movement of particles in a stick of butter differ from the movement of particles in a dish of melted butter? 4. as water is cooled, at what temperature do its particles become fixed in place? 5. how do evaporation and boiling differ?

1. The particles keeps on moving (move faster) when a substances gains energy and changes state.

2. When water freezes it gives up some of the water's energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released. Heat energy was actually being released

3. In a stick of butter, the particles are locked together and are compact. In melted butter, the particles can slide past each other and are less compact.

4. 0 degrees Celsius.

5. Evaporation only happens at the surface while boiling happens all throughout.

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