For each of the following cases, identify the order with respect to the reactant, A.
i) The half-life of A is independent of the initial concentration of [A].
ii) A threefold increase in the initial concentration of A leads to a ninefold increase in the initial rate.
iii) A threefold increase in the initial concentration of A leads to a 1.73-fold increase in the initial rate.
iv) The time required for [A] to decrease from [A]0 to [A]0/2 is equal to the time required for [A] to decrease from [A]0/2 to [A]0/4. The rate of decrease of [A] is a constant.
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