Chem
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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| reaction rate | the change in concentration of a reactant or product per unit time, expressed as mol/(ls)
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| Collision theory | atoms, ions, and molecules must collide with each other in order to react.
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| activated complex/transition state | an intermediate particle made up of the joined reactants
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| activation energy | minimum amount of energy that colliding particles must have in order to form an activated complex
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| catalyst/enzyme | a substance that increases the rate of a chemical reaction without itself being consumed in the reaction
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| inhibitor | a substance that slows down, or inhibits, reaction rates.
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| rate law | the equation that expresses the mathematical relationship between the rate of a chemical reaction and the concentration of reactants
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| specific rate constant | numerical value that relates reaction rate and concentration of reactants at a given temp.
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| reaction order | the reaction order for a reactant defines how the rate is affected by the concentration of that reaction.
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| complex reaction | a certain series of steps mus occur with correct fit and in an exact sequence in order to yield trhe reaction products
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| reaction mechanism | the SERIES OF STEPS that must occur with correct fit and in an exact sequence in order to yield trhe reaction products
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| intermediate | an atom,ion or molecule prduced in one step of a reaction adn consumed in a later step
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| rate-determining step | determines how fast the reaction forms products, no matter how fast the other steps are
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| chemical kinetics | the study of the sped at which chemical and physical processes take place
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| rate law | a mathematical expression showing how a change in the concentration affects the rate of the reaction
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| reversible reation | one that can occur in both the FORWARD and the REVERSE directions
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| chemical equlibrium | a state in which the forward an dreverse reactions balance each otehr because they take place at equal rates
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| law of chemical equlibrium | at a given temp, a chem system may reach a state in which a particular ration of reactant and product concentrations has a constant value
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| equilibrium constant | the numerical value of the ration product concentrations to reactant concentrations, with each concentration raised to the power corresponding to its coefficient in the balanced equation
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