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Vocab B-3

Mrs. Weaver's Science Vocab B-3

Closed System A chemical reaction that occurs in a container that allows no reactants or products to escape.
Conservation of Mass Mass is neither created nor destroyed during a chemical reaction.
Exothermic A chemical reaction characterized by the production and release of heat.
Open System A chemical reaction that occurs in such a way that reactants or products are allowed to escape.
Precipitate an insoluble solid that forms when two solutes interact within a solution
Product (Of a Chemical Reaction) In a chemical reaction, the substances that are produced by the reactants; that is, the final substances that are present at the end.
Reactant Chemical substances that enter into a reaction. In an equation, these are generally listed to the left of the arrow or equals sign. The original substances that are present at the beginning of a reaction.
Created by: mfocht79



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