From a liquid to a gas, the particles become more spread out and move slower.
From a solid to a liquid, the particles also become more spread out and move slower.
Changes very easy
Yes, in fact, particle movement is what heat is.
water changing to a solid: freezing movement of particles: vibration in fixed positions. arrangement: fixed positions (bonds between every particle). moving closer together water as a liquid: movement of particles: move about (slide past each other) arrangement: close together with no regular arrangement water to gas: boiling movement of particles: free/random movement at high speeds. arrangement: particles move further apart with no bonds between particles.
water changing to a solid: freezing movement of particles: vibration in fixed positions. arrangement: fixed positions (bonds between every particle). moving closer together water as a liquid: movement of particles: move about (slide past each other) arrangement: close together with no regular arrangement water to gas: boiling movement of particles: free/random movement at high speeds. arrangement: particles move further apart with no bonds between particles.
The arrangement changes because the freezing point. When something freezes it changes into a new substance and that is arranging it into a chemical change.
You mean if a substance can go from solid to liquid? Of course, take the ice cubes out of the freezer and you'll see it happening. Do you mean that when such process occurs, does the substance changes? No, only the grouping and movement of particles in it.
When a substance changes from a liquid to a gas, the kinetic energy of its particles increases.
electrons
electrons
physical. melting does not change the substance; it only changes the state of matter (or the movement of particles).
A change in state
a change of state