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Matter

TermDefinition
Atom The smallest particle into which a chemical element can be divided and still have the same properties.
Solid Matter in this state maintains a fixed volume and shape, with particles close together and fixed into place.
Liquid State of matter with a definite volume but no fixed shape.
Gas State of matter composed of molecules in constant random motion. This state has no fixed shape and will take on the shape of the space available.
Plasma State of matter composed of electrically charged molecules in constant random motion. This state has no fixed shape and will take on the shape of the space available.
Matter Anything that has mass and takes up space
Particle Theory of Matter / Kinetic Molecular Theory Theory that states how matter behaves (1. All matter is made up of atoms. 2. Particles are constantly in motion. 3. Particles attract each other. 4. Particles have space between them. 5. As temperature increases, particles move faster)
Mixture A combination of two or more substances that are not chemically combined
Compound A substance made up of atoms of two or more different elements joined by chemical bonds
Element A pure substance made of only one kind of atom
Condensation The change of state from a gas to a liquid
Melting The change in state from a solid to a liquid
Freezing The change of state from a liquid to a solid
Evaporation The change of a substance from a liquid to a gas
Vaporization The change of state from a liquid to a gas
Deposition Change from a gas directly to a solid
Sublimation the process in which a solid changes directly into a gas
Pure Substance A substance made of only one kind of matter and having definite properties
Solute A substance that is dissolved in a solution
Solvent the substance in which the solute dissolves
Physical Change A change in a substance that does not involve a change in the identity of the substance
Chemical Change A change in matter that produces one or more new substances
Heterogeneous Mixture A mixture in which different materials can be distinguished easily. Also called a mechanical mixture
Homogeneous Mixture A mixture in which substances are evenly distributed throughout the mixture (cannot see individual components). Also called a solution.
Physical Property a characteristic that can be observed or measured without changing the identity of the substance. Describes the physical appearance of a substance.
Chemical Property A characteristic of a substance that describes its ability to change into different substances. Describes the chemical structure of a substance
Created by: user-1974052
 

 



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