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Chem Unit 8
| Term | Definition |
|---|---|
| Rate | How fast something is happening |
| Products | Substance that is produced in a chemical reaction |
| Reactants | Substance that is consumed in a chemical reaction |
| Reaction Rate | Change in concentration of reactants or products over time |
| Activation Energy | Required to start a chemical reaction |
| Collision Theory | Atoms,ions, and/or molecules must collide with each other in order to react |
| Concentration | The amount of a given substance conatined within a given volume |
| Pressure | Measures concentration of a gas |
| Surface Area | More particles are available to collide/react |
| Temperature | Measure of average kinetic energy of molecules in a substance |
| Catalyst | Increases rate of a chemical reaction without being consumed by the reaction |
| Enzyme | A biological(protein) catalyst |
| Chemical Equilibrium | State in which the rate of the forward reaction is equal to the rate of the reverse reaction, no change in concentration of products or reactants |
| Reversible Reaction | A reaction that can occur in both the forward and reverse directions |
| Le Chatlelier's Principle | If a stress is applied to a system at equilibrium, the equilibrium will shift so as to tend to counteract the stress |
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boltrak