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a characteristic of a pure substance that can be observed without changing it into another substance
a characteristic of a pure substance that describes its ability to change into a different substance
a pure substance that cannot be broken down into other substances by chemical or physical means; one of about 100 basic materials that make up all matter
a combination of symbols that represents the elements in a compound and their proportions
a mixture in which pure substances are unevenly distributed throughout the mixture
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
International System of Units
(SI) the system of units (SI) used by scientists to measure the properties of matter
a change in which one or more substances combine or break apart to form new substances
law of conservation of mass
the principle that the total amount of matter is neither created nor destroyed during any chemical or physical change
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