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Exam 2 chem
Chemistry exam 2
| Question | Answer |
|---|---|
| Kinetics | how fast a reaction occurs; energy in movement |
| Activation Energy | minimum energy to start a reaction |
| catalyst | a reaction by lowering the activation energy |
| Le Chatelerie's principle | if stress is applied to a system equillibrium then the system will respond in such a way to off et the stress applied |
| equilibrium | when speed or rate of the forward reaction equals the speed or rate of the reverse reaction |
| Kc | concentration of the products at equillibrium over concentration of reactants at equilibrium |
| Kp | pressure of products at equilibrium over pressure of reactants at equilibrium |
| rate | speed of a reaction |
| homogenous catalyst | reactants and products are in the same phase |
| heterogenous catalyst | reactants and products are in different phases |
| half life | the amount of time that it takes for an isotope to decrease one half life its original concentration |