Chemistry terms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| chemical equation | the representation that uses symbols, subscripts, coefficients and formula to show what happens in a chemical reaction
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| symbol | the one or two letter abbreviation for an element
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| chemical formula | abbreviation of a compound's name; includes symbols and subscripts
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| subscript | the number to the right and below a symbol to indicate the number of atoms present
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| reactants | the substance(s)that are present at the beginning of a chemical reaction; placed on the left side of a chemical equation
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| products | the substance(s) that are at the conclusion of a chemical reaction; placed on the right side of a chemical equation
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| conservation of mass | the scientific law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
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| coefficient | the number written in front of a chemical formula; shows the number of molecules present
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| synthesis | type of chemical reaction in which 2 or more reactants produce one product
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| decomposition | type of chemical reaction in which one reactant breaks down into 2 or more products
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| replacement | type of chemical reaction in which one element replaces another element in a compound or in which 2 elements in different compounds trade place
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