When a substance changes, any or all of its properties can also change.
When a substance changes from a liquid to a gas energy is absorbed. When a substance changes from a gas to a liquid energy is released.
Physical changes in a substance result in
Chemical Change.
The mass of a substance does not change when the amount of the substance changes. The temperature of a substance does not change when the amount of the substance changes. However, the volume of a substance may change when the amount of the substance changes, depending on the conditions.
When a substance changes, any or all of its properties can also change.
Changes the temperature of the substance
each substance has a density that differ from the densities of other substance.
When a substance changes from liquid to solid is called freezing.
A new substance is formed only after a chemical change.
A substance changes from a solid to a liquid at its melting point
Melting: The substance changes from a solid to a liquid as heat is applied. Freezing: The substance changes from a liquid to a solid as it loses heat. Evaporation: The substance changes from a liquid to a gas as it is heated. Condensation: The substance changes from a gas to a liquid as it cools. Sublimation: The substance changes directly from a solid to a gas without going through a liquid phase.
The temperature at which a substance changes from a solid to a liquid is called the melting point.