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Matter, References:
Definitions:
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Matter
Characteristics
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Electrical Conductivity
The ability of valence electrons in a substance to freely move, especially when induced in the presence of moving magnetic fields.
Color
Physical property in chemicals that usually comes from the excitation of electrons due to an absorption of energy performed by the chemical.
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Boiling Point
Temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapor of the liquid.
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Solubility
The ability of a solid, liquid, or gaseous chemical substance to dissolve in solvent and form a solution.
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Ductility
The ability of a material to be stretched, pulled, or drawn into a thin wire or thread without breaking.
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Classification
Pure Substance
Substance that cannot be broken down or transformed into a new substance even by using physical or chemical means.
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Element
Any substance that cannot be decomposed into simpler substances by ordinary chemical processes. 
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Compound
A substance made up of two or more different chemical elements combined in a fixed ratio.
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Composition
Atom
The smallest particle of a chemical element that can exist.
Molecule
A Group of atoms bonded together.
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Properties
Physical Properties
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A characteristic of a substance that can be observed or measured without changing the identity of the substance.
Chemical Properties
change with a
Chemical Reaction
The process by which chemical substances interact to form new chemical substances with different compositions.
causes a
Chemical Change
An usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition.
A property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.
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References: Definitions:
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