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Chem CH1 Section 2

Chemistry CH1 Section 2 Properties and Changes of Matter

TermDefinition
chemical change the change of one or more substances into other substances
chemical property a property that can be observed only when there is a change in the composition of a substance
chemical reaction another term for chemical change
density the amount of matter (mass) in a given unit volume
endothermic chemical reaction that absorbs energy
energy the capacity to do work
exothermic chemical reaction that gives off energy
law of conservation of mass in a chemical change, matter is neither created nor destroyed
volatile description of a substance that easily changes to a gas at room temperature
 



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