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Vocab B-3
Mrs. Weaver's Science Vocab B-3
Term | Definition |
---|---|
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. |