A reaction is first order in A. If the rate constant of the reaction is 3.45x10^-3 s-1, what is the half life of the reaction?

a. 4.98x10^-3 s
b. 200 s
c. 3.45x10^-3 s
d. 100 s
e. 1.73x10^-3 s

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  1. B. 200

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