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Science chapter 3

im going to pass with flying colors

TermDefinition
Matter anything that has mass and takes up space
Chemistry the study of matter and how matter changes
Subsistence a single kind of matter that is pure
physical property is a characteristic of a substance that can be observed without changing it into another substance
Chemical Property is a characteristic that describes its ability to change into different substances
Element its a substance that can not to be broken down into any other substances by physical and chemical means
Atom the basic particle which all elements are made from
chemical bond the force of attraction between to atoms
molecule a group of to or more atoms that are held together by chemical bonds
compound a substance made up of two or more elements that are chemically combined in a set ratio
chemical formula shows the elements in the compound and the ratio of atoms
mixture 2 or more substances that are in the place but are not chemically bonded
density the measure of mass of a material in the giving volume
physical change alters the form of appearance but does not change any substance in the matter into a different substance
chemical change a change in matter which changes a substance into 1 or more new substances
law conservation of mass the fact that matter is not created or destroyed in any chemical or physical change
temperature how hot or cold something is
thermal energy the total energy stored in the motion of the particles in a object
endothermic change absorbs energy
exothermic change releases energy
chemical energy the energy stored in chemical bonds between atoms
Created by: ayer_kaci
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