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Chemistry
Chapter 11 Definitions
Term | Definition |
---|---|
Activity Series | A list of elements in order of decreasing activity; the activity series of halogens is Fl, Cl, Br, I |
Balanced Equation | A chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element |
Catalyst | A substance that increases the rate of reaction by lowering the activation energy barrier; the catalyst is not used up in the reaction |
Chemical Equation | An expression representing a chemical reaction |
Coefficients | A small whole number that appears in front of a formula in a balanced equation |
Combination Reaction | A chemical change in which two or more substances react to form a single new substance |
Combustion Reaction | A chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light. |
Complete Ionic Equation | Equation that shows dissolved ionic compounds as dissociated free ions |
Decomposition reaction | A chemical change in which a single compound is broken down into two or more simpler products |
Double-Replacement Reaction | A chemical change that involves an exchange of positive ions between two compounds |
Net Ionic Equation | An equation for a reaction in solution showing only those particles that are directly involved in the chemical change |
Single-Replacement Reaction | A chemical change in which one element replaces a second element in a compound |
Skeleton Equation | A chemical equation that does not indicate the relative amounts of reactants and products |
Spectator Ion | An ion that is not directly involved in a chemical reaction; an ion that does no change oxidation number or composition during a reaction |