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chemical and physical properties and changes

mass The amount of matter in an object
compound 2 or more substances that are chemically combined ex. water
pure substance Category of matter that is either an element or a compound
volume The amount of space an object or substance takes up
element simple pure substance that cannot be changed into a simpler substance ex. oxygen
density \The amount of mass in a specific volume
exothermic reaction loses or releases heat energy; resulting in a heating of the environment and cooling of the substance
mixture 2 or more substances not chemically combined
endothermic reaction absorbs heat energy; resulting in cooling of the environment and heating of the substance
compound 2 or more elements that are chemically combined ex. water. 2 or more types of atoms
Chemical change A process in which one or more substances are altered into one or more new and different substances, a reaction involving the rearrangement of atoms
Physical change A usually reversible change in the properties of a substance. The appearance of the substance changes but its identity does not
Created by: kcurtin
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