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EMEQ Vocab

QuestionAnswer
law of conservation of mass states that matter cannot be created or destroyed
physical change any change in shape, size, or form
chemical change one or more original substances turned into another substance
element substance that cannot be broken down into simpler substances
chemical formula a way of expressing information about the atoms that constitute a particular chemical compound
element molecule a single molecule formed by one atom
diatomic molecule a molecule formed by two atoms
compound molecule molecules that contain at least two different elements
chemical equation shorthand form for writing what reactants are used and what products are formed in a chemical reaction
chemical reaction process that produces chemical change, resulting in new substances that have properties different from those of the original one
reactants (in a chemical equation) substance that exists before a chemical reaction begins
products (in a chemical equation) substance that forms as a result of a chemical reaction
coefficient (in a chemical equation) states the amount of molecules from an equation
subscript (in a chemical equation) states how many of each element there is; only applies to the element to the left of the number
Created by: justineavery
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