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chapter 10

foundations of chemistry ~

matter anything that has mass and takes up space
atom a small particle that is the building block of matter
substance matter with a composition that is always the same
element a substance that consists of only one type of atom
compound a substance containing atoms of two or more different elements chemically bonded together
mixture matter that can vary in composition
heterogeneous mixture a mixture in which substances are not evenly mixed
homogeneous mixture a mixture in which two or more substances are evenly mixed but not bonded together
dissolve to form a solution by mixing evenly
physical property a characteristic of matter that you can observe or measure without changing the identity of the matter
mass the amount of matter in an object.
density the mass per unit volume of a substance
solubility the maximum amount of solute that can dissolve in a given amount of solvent at a given temperature and pressure
physical change a change in the size, shape, form, or state of matter that does not change the matter's identity
chemical property the ability or inability of a substance to combine with or change into one or more new substances
chemical change a change of one or more substances into one or more other substances with different physical and chemical properties
concentration the amount of a particular solute in a given amount of solution
thermal heat