Ch. 13
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Kinetics | the study of the factors that affect the speed of a reaction and the mechanism by which a reaction proceeds
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| half-life (t1/2) | The time required for the concentration of a reactant or the amount of a radioactive isotope to fall to one-half of its initial value.
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| activation energy | An energy barrier in a chemical reaction that must be overcome for the reactants to be converted into products.
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| reaction order | A value in the rate law that determines how the rate depends on the concentration of the reactants.
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| rate law | A relationship between the rate of a reaction and the concentration of the reactants.
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| Molecularity | The number of reactant particles involved in an elementary step.
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| elementary step | An individual step in a reaction mechanism.
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| reaction mechanism | A series of individual chemical steps by which an overall chemical reaction occurs.
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| collision theory | A model of chemical reactions in which a reaction occurs after a sufficiently energetic collision between two reactant molecules.
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| intermediate | species produced and consumed in a chemical reaction and doesn’t appear in the overall equation
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| transition state (activated complex) | A high-energy intermediate state between reactant and product.
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| catalyst | A substance that is not consumed in a chemical reaction, but increases the rate of the reaction by providing an alternate mechanism in which the rate-determining step has a smaller activation energy.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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