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Question and answer
Q: What happens to a catalyst in a reaction? A. It is unchanged. B. It is incorporated into the products. C. It is incorporated into the reactants. D. It evaporates away.
A: The answer is A. It is unchanged.
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Original conversation
User: What happens to a catalyst in a reaction? A. It is unchanged. B. It is incorporated into the products. C. It is incorporated into the reactants. D. It evaporates away.

Weegy: The answer is A. It is unchanged.
sharpies|Points 8827|

User: Which of the following statements about reaction rates is not true? A. One way to increase the reaction rate is to increase the temperature of the system. B. One way to slow down the reaction rate is to decrease the temperature of the system. C. One way to increase the reaction rate is to decrease the concentration of reactants. D. One way to increase the reaction rate is to decrease particle size.

Weegy: A. Increasing the temperature will increase reaction rate
AwesomeGuy200|Points 1177|

User: Active sites are specific to one type of _____. A. enzyme B. product C. substrate D. reactant

Weegy: Active sites are specific to one type of: C. SUBSTRATE.



User: Which of the following factors affects a reaction rate the most? A. activation energy B. whether one or two reactant molecules is required C. relative energy in reactant and product molecules D. relative masses of reactant and product molecules

Weegy: A. activation energy
Controler|Points 3928|

User: If a catalyst is used in a reaction, A. the energy of activation increases. B. different reaction products are obtained. C. the reaction rate increases. D. the reaction rate does not change

Weegy: It is letter C. the reaction rate increases. A catalyst is a substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process. [ In an equilibrium reaction it speeds up the rate of forward and backward reactions. But a catalyst will not affect the final equilibrium of the reaction. ]
Expert answered|carl1980|Points 112|

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Asked 5/3/2013 1:19:37 AM
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