Change of State and Solubility Chapter 3
3 States of Mtter Solid Liquid gas
Thermal Energy Heat energy Thermal energy is the energy that makes atoms and molecules move
The more atoms and molecules move, the more room they take up. When matter is heated, therefore, it expands When matter is cooled, it moves less, and contracts.
Solid Particles are packed closely together Particles vibrate in place Particles have a fixed volume and shape
Liquid Particles are freely moving Particles have a fixed volume, but take the shape of the surrounding container
Gas Particles do not have a fixed volume and take the shape of the surrounding container
States of matter video
Plasma: highest-energy state of matter; consists of electrons and positive atoms
Plasma video
Solid/Liquid Melting: the process in which a solid is changed into a liquid Freezing: the process in which a liquid is turned into a solid
Gas/Liquid Vaporization: the process of turning a liquid into a gas Boiling: a type of vaporization in which large amounts of a liquid change into a gas at once Evaporation: the type of vaporization that occurs when energetic particles burst through the surface of the liquid and escape Condensation: the process in which a gas is turned into a liquid
Solid/Gas Sublimation: the process in which a solid is converted directly into a gas Deposition: the process in which a gas turns directly into a solid
Proteins Some of the largest, most complex molecules of all
Solubility Solubility is the ability of one material to be dissolved into another
Solutions A solution is a mixture that is made when one material dissolves into another 2 parts: Solvent: a gas, liquid, or solid in which another material is dissolved Ex: Water: very good at dissolving things; universal solvent Solute: material that is dissolved Ex: salt, sugar
Soluble: a material is able to be dissolved Ex: Salt is soluble in water Insoluble: materials that are not able to be dissolved Ex: a glass marble is insoluble in water
Saturation: when no more of a material (solute) will dissolve in a solvent
imploding soda can steel barrel
Read p. 37- 39
Water liquid solid