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Element

a substance that cannot be separated or broken down into simpler substances by chemical means

Pure Substance

a sample of matter, either a single element or a single compound, that has definite chemical and physical properties.

Metal

an element that is shiny and conducts heat and electricity well.

Nonmetal

an element that conducts heat and electricity well.

Metalloid

an element that has properties of both metals and nonmetals.

Compound

a substance made up of atoms of two or more different elements.

Mixture

a combination of two or more substances that are not chemically combined.

Solution

a homogenous mixture of two or more substances uniformly dispersed throughout a single place.

Solute

in a solution, the substance that dissolves in the solvent.

Solvent

in a solution, the substance in which the solute dissolves.

Concentration

the amount of a particular substance in a given quantity of a mixture, solution, or ore.

Solubility

the ability of one substance to dissolve in another at a given temperature and pressure.

Suspension

a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas.

Colloid

a mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions that are suspended in a liquid, solid, or gas.

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