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BJU Chemistry Ch 14
Bob Jones Chemistry - Chapter 14
| Term | Definition |
|---|---|
| activated complex | A theoretical, unstable, energetic group of reactants that forms as a transitional structure during a chemical reaction. |
| activation energy | The minimum amount of kinetic energy required before colliding molecules can react. |
| catalyst | A substance that changes a reaction rate without being permanently changed in the process. |
| collision theory | The theory that molecules and atoms must undergo forceful, properly oriented collisions before they can meet. |
| complex reaction | The combination of the individual elementary steps of a reaction. |
| elementary step | Two or more possible steps that make up a reaction mechanism. |
| enzyme | A naturally occurring protein molecule that acts as a catalyst. |
| heterogeneous catalyst | A catalyst that is in a phase different from the reactants. |
| heterogeneous reaction | A reaction in which the reactants are in different phases. |
| homogeneous catalyst | A catalyst that is in the same phase as a reactant or in solution with the reactant. |
| homogeneous reaction | A reaction in which the reactants and products are all in the same phase. |
| inhibitor | A substance used to slow a reaction or reduce a catalyst's undesirable effects. |
| intermediate | A substance formed in one step and consumed in the next step during a complex reaction. It does not appear in the net chemical equation. |
| kinetics | In chemistry, the study of the rates of reactions and the steps by which they occur. |
| pharmacokinetics | The study of how the human body processes medication. It includes absorption, distribution, metabolism, and excretion. |
| rate-determining step | The slowest elementary step in the reaction; the speed-limiting step. |
| rate law | An equation that mathematically describes how fast a reaction occurs. |
| reaction mechanism | The series of steps that make up a reaction. |
| reaction order | An indicator of how the rate of a reaction is affected by that specific reactant's concentration. |
| reaction rate | The speed at which reactants disappear or products appear in a chemical reaction. |
| specific rate constant (k) | The experimentally determined rate constant for each individual reaction. |
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marchscience
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