Chem 116 ASU Final Exam Review questions with answers

Chem 116 ASU Final Exam Review |\ |\ |\ |\ |\ |\




questions with answers |\ |\




A catalyst accelerates a reaction because:
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A.) it decreases the number of molecules with energy
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equal or greater than the activation energy
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B.) it lowers the activation energy for the reaction
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C.) it increases the number or collisions between
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molecules
D.) it supplies energy to reactant Molecules. - CORRECT
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ANSWERS ✔✔B.) it lowers the activation energy for the
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reaction


Consider the Reaction: |\ |\ |\




8A(g) + 5B(g) --> 8C(g) + 6D (g)
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If C is increasing at a rate of 4.0 M/s, at what rate is D
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changing? |\




A.) 4.9 M/s
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B.) 3.0 M/s
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, C.) 2.0 M/s
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D.) 6.0 M/s
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E.) 4.0 M/s - CORRECT ANSWERS ✔✔B.) 3.0 M/s
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A good catalyst will speed p the forward reaction but not
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affect the speed of the reverse reaction.
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True or False? - CORRECT ANSWERS ✔✔False
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H2(g) + MgC03 (s) <---> H20(g) + Co2(g)
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what will happen to the amount of volume in the
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container?


A.) Amount of carbon dioxide present will increase
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B.) Amount of carbon dioxide present will decrease
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C.) the amount of carbon dioxide will be unchanged
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D.) the equilibrium constant will have to decrease to
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compensate
E.) More info is needed - CORRECT ANSWERS ✔✔A.)
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Amount of carbon dioxide present will increase
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2NaHCO3 (s) <---> Na2CO3(s) + H20(g) + Co2 (g) |\ |\ |\ |\ |\ |\ |\ |\