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Unit 1: Matter

Chemistry

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 substance's ability to participate in chemical reactions
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 into a wire
Malleability The ability of a substance to be hammered or beaten into a sheet
Volume A measure of the size of the 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 & liquids & as grams per liter for gases
Evaporation The change of a substance from a liquid to a gas
Sublimation The process in which a solid changes directly into a gas (The term is sometimes also used for the reverse process)
Vaporization The process by which a liquid or solid changes to a gas
Element A substance that can't be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number
Compound A substance made up of atoms of two or more different elements joined by chemical bounds
Heterogeneous Composed of dissimilar components
Homogeneous Describes something that has a uniform structure or composition throughout
Atom The smallest unit of an element that maintains the chemical properties of that element
Physical change A change in the substance that doesn't involve a change in the identity of the substance (A change of the state of matter) from solid to liquid/gas
Chemical change A change in which one or more substances are converted into different substances (Chemical reaction takes place)
Created by: mv383931
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