3. [05.02]Describe what happens to the particles of a liquid, in terms of movement and kinetic energy, as it is cooled to its freezing point, including whether this is a physical or chemical change. (2 points

Question

3.   [05.02]Describe what happens to the particles of a liquid, in terms of movement and kinetic energy, as it is cooled to its freezing point, including whether this is a physical or chemical change.  (2 points

btaylor · Answer

It is a physical change, b/c the chemical identity of the matter doesn't change. Just think about water: as it freezes, it is harder to move-->less kinetic energy. So there is less free movement, and less kinetic energy as it freezes.