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Vocabulary

Physical and Chemical Changes Notes

TermDefinition
physical change a change that affects one or more physical properties of a substance
chemical change occurs when one or more substances change into entirely new substances with different properties
chemical properties describe which chemical changes can or cannot happen to that substance
law of conservation of mass states that in ordinary chemical and physical changes, mass is not created or destroyed
law of conservation of energy states that energy cannot be created or destroyed
endothermic changes that absorb energy
exothermic changes that release energy
Created by: dogie
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