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What happens to the molecules as a solid melts?
As a substance melts, the molecules of the formerly-solid substance becomes less structured and drifts further apart.
What happens as a solid changes to a gas what increases?
The movement of the molecules making up the solid increases.
Does melting occur when a substance changes from a liquid to a solid?
This change in the state of matter (liquid to solid) is called freezing, not melting; it is a physical change, the chemical nature of the molecules is not changed.
What happens when something changes states from a solid to liquid?
the molecules spread out and become less dense
What happens to heat during a change of starte?
During a change of state, such as melting or boiling, heat is either absorbed or released. When a substance changes from a solid to a liquid or from a liquid to a gas, heat is absorbed to break the intermolecular forces holding the molecules together. Conversely, when a substance changes from a gas to a liquid or from a liquid to a solid, heat is released as the intermolecular forces are strengthened.
What happens to molecules when a substance changes from liquid to a solid?
They start to get closer together
What happens at the melting of a substance?
The solid changes into a liquid
What happens to the molecules of a substance as it moves from a liquid to a solid?
use your book
What happens to a substance during changes between solid and I gas?
When a substance changes from a solid to a gas, called sublimation, it quickly becomes less dense.
What happens to the molecules as a solid melts?
As a substance melts, the molecules of the formerly-solid substance becomes less structured and drifts further apart.
What happens to the molecules of a substance as it moves from a liquid to a solid state?
use your book
What happens to the temperature of a substance as it changes from a solid to a liquid?
it heats up
What happens to heat energy when a substance changes from solid to liquid?
it melts
What happens as a solid changes to a gas what increases?
The movement of the molecules making up the solid increases.
What happens when a substance changes from a solid to a gas without becoming a liquid?
It sublimes
Does melting occur when a substance changes from a liquid to a solid?
This change in the state of matter (liquid to solid) is called freezing, not melting; it is a physical change, the chemical nature of the molecules is not changed.
What happens when a substance changes state from a solid or liquid?
When a substance changes state from a solid to a liquid, it undergoes melting where it gains enough energy to break the bonds holding its particles together. When it changes from a liquid to a gas, it undergoes vaporization where it gains enough energy to overcome the forces of attraction between its particles.
