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Unit 1: Matter
Term | Definition |
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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 or color |
Chemical Property | A property of matter that describes a substances ability to participate in chemical reaction |
Physical Changes | A change of matter from one form to another without a change in 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 relating to size or extent |
Intensive Property | A property that does not depend on the amount of matter present, such as pressure, temp, 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 of beaten into a sheet |
Volume | A measure of the size of the body or region in 3d 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 or per cubic centimeter for solid |
Evaporation | The change of a substance from liquid to gas |
Sublimination | A solid changing into a gas or reverse |
Vaporization | Liquid is exchanged into gas |
Element | A substance that cannot be 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 bonds |
Heterogenous Mixture | A reaction in which the reactants are in two different phases |
Homogenous Mixture | A reaction in which all of the reactants and products are in the same phase |
Atom | The smallest unit of an element that maintains the chemical properties of that element |