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Ch 10 Sect 2 Gr 7

Chemistry terms

QuestionAnswer
chemical equation the representation that uses symbols, subscripts, coefficients and formula to show what happens in a chemical reaction
symbol the one or two letter abbreviation for an element
chemical formula abbreviation of a compound's name; includes symbols and subscripts
subscript the number to the right and below a symbol to indicate the number of atoms present
reactants the substance(s)that are present at the beginning of a chemical reaction; placed on the left side of a chemical equation
products the substance(s) that are at the conclusion of a chemical reaction; placed on the right side of a chemical equation
conservation of mass the scientific law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
coefficient the number written in front of a chemical formula; shows the number of molecules present
synthesis type of chemical reaction in which 2 or more reactants produce one product
decomposition type of chemical reaction in which one reactant breaks down into 2 or more products
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
Created by: Sciteach6
 

 



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