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Unit 1: Matter

TermDefinition
matter anything that has mass and takes up space
physical property a characteristic of a substance that does not involve a chemical change, such as density, color, or hardness
chemical property a property of matter that describes a substances ability to participate in chemical reactions
physical changes a change of matter from one form to another without a change i n chemical properties
chemical changes a change that occurs when one or more substances change into entirely new substances with different properties
extensive property a property that depends on the extent or size of a system
intensive property a property that does not depend on the amount of matter present,such as pressure,temperature, or density
ductility the ability of a substance to be hammered thin or drawn out into a wire
malleability the ability of a substance to be hammered or beaten into a sheet
volume a measure of the size of a body or region in three-dimensional space
compressibility the measure of how much a given volume of matter decreases when placed under pressure
density the ratio of the mass of a substance to the volume of the substance; often expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases
evaporation the change of a substance from a liquid to gas
sublimation the process in which a solid changes directly into a gas
vaporization the process by which a liquid or solid changes to a gas
element a substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number
compound a sub stance made up of atoms of two or more different elements joined by chemical bonds
heterogeneous mixture composed of dissimilar compounds
homogeneous mixture describes something that has a uniform structure
atom the smallest unit of an element that maintains chemical properties
Created by: sm395830
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