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8th Chemistry - SMS

8th gr. Chemistry -SMS

QuestionAnswer
compound substance made of two or more elements chemically combined in a specific ration or proportion
mixture when two or more pure substances are in the same place but are not chemically combined
element a substance that cannot be broken down into any other substances by chemical or physical means
molecule a particle made up of two or more atoms bonded together
chemical change a change in matter that forms one or more new substances
physical chagne a change that alters the form or appearnce of a material but doesn't convert the material into new substances
atom the smallest particle of an element
chemical bond the force that holds atoms together
solution a well-mixed mixtrue in which on substance is dissolved in another
chemistry the study of the properties of matter and how matter changes
precipitate a solid that forms from solution during a chemical reaction
chemical equation written with symbols instead of words
symbol one or two letters used to represent most elements
chemical formula a combination of symbols that represent the elements in a compound
Created by: SimardRR