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one type of atom


2 or more types of atoms combined through a chemical reaction creates a new substance, cannot be seperated by physical means


2 or more substances that are physically combined no new substances, can be seperated by physical means


a solution that is capable of dissolving more solute more solute can be added


a solute with the max amount of solute


a solution that contains more than max amount of solute that it can hold unstable


a solution in which the amount of solute is less than the max amount the solvent can hold


a solution in which the amount of solute is much less than the max amount the solvent can hold ex.-tea


a characteristic that is used to identify a substance every substance has a unique combination of properties

physical property

any characteristic of a material that can be observed without changing the composition of the substance ex.-color, shape, size, density, melting point, boiling point


the ratio of mass and its volume

chemical properties

a property of a substance that indicates whether can undergo a certain chemical change

chemical change

a change that alters the chemical composition of a substance new substance found ex.-flammable or combustible, bubbles, changes color, corrosive, rapid production of energy

Law of Conservation of Mass

the mass of all substances before a chemical change, is equal to the mass after the chemical change

homogeneous mixture

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

heterogeneous mixture

a mixture in which different parts can be easily distinguished


a heterogeneous mixture containing tiny particles that never settle out; for example, milk and gelatin


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


the substance that dissolves a solute


the substance being dissolved in a solvent

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