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Chemistry Unit

Waite: Chemical reactions Ch 6

TermDefinition
matter Anything that has mass and takes up space
physical property A characteristic of a pure substance that can be observed without changing it into another substance.
chemical property A characteristic of a pure substance that describes its ability to change into a different substance
chemical change A change in which one or more substances combine to break apart to form new substances.
physical change A change in a substance that does not change its identity
reactant A substance that undergoes change in chemical reaction
product A substance formed as a result of a chemical reaction
precipitate A solid that forms from a solution during a chemical reaction
endothermic reaction A reaction that absorbs energy in the form of heat
exothermic reaction A reaction that releases energy in the form of heat
Law of Conservation of Matter The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change
Created by: sbarone