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For a type 2 second order reaction, the reaction is 60% complete in [A] in 60...

For a type 2 second order reaction, the reaction is 60% complete in [A] in 60 seconds when [A]0 = 0.1 M and [B]0 = 0.5 M. What is the rate constant for this reaction? Calculate the time for the reaction to reach 60% completion change if the initial reactant concentrations are decreased by a factor of 2. (Are the two times the same regardless of initial reactant concentrations?)
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