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the change of substances to different substances

chemical property

a characteristic of a substance that indicates whether it can undergo a specific chemical change


process that destroys colloid structure can be used to reduce a colloidal form of air pollution


is a heterogenous mixture that, like a solution, never settles


substance made of the combined atoms of two or more elements


substance in which all the atoms in a sample are alike

heterogeneous mixture

a mixture in which different materials can be easily distinguished

homogeneous mixture

a mixture in which different materials are blended evenly so the mixture is the same throughout; also called a solution

law of conservation of mass

a law stating that material is neither created nor destroyed during a chemical change

physical change

a change in size, shape, color, or state of matter

physical property

any characteristic of a material that can be observed without changing the identity of the material itself


a homogeneous mixture containing particles so tiny that they cannot be seen even with a microscope ; particles in a solution don't settle and don't scatter light


matter that is an element or a coumpound


a meterogenous mixture containing a liquid in which larger particles eventually settle out

Tyndall Effect

the scattering of light by particles in a mixture this effect can be seen in all colloids

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