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8.5E

Chemical Reactions

QuestionAnswer
Evidence indication that an event has occurred
Substance an element or compound that can only be separated or combined to make substances with new properties by means of a chemical reaction
Chemical Reaction the process by which one or more substances change to produce one or more different substances
Precipitate a solid that is deposited from a solution
Endothermic a process that absorbs heat
Exothermic a process that release heat
Chemical Equation chemical formulas and symbols written to represent a reaction
Reactants a substance that takes part in and undergoes change during a reaction
Products substances produced during chemical reactions
Coefficient a number placed in front of a chemical symbol or formula in order to balance the equation
Balanced Chemical Equation a symbolic representation of a chemical reaction in which both sides of the equation contain equivalent numbers of atoms of each element
Law of Conservation of Mass the mass of all reactants must equal the mass of all products; matter us neither created nor destroyed
Created by: kendra.young
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