For a second-order reaction with a single reactant A, which of the following is the correct integrated rate law and corresponding half-life?

• A. 1/[A] = kt + 1/[A]0; t1/2 = 1/(k [A]0)
• B. [A] = [A]0 - kt; t1/2 = [A]0/(2k)
• C. ln([A]) = ln([A]0) - kt; t1/2 = ln 2 / k
• D. [A] = [A]0 e^{-kt}; t1/2 = ln 2 / k

Answer: (A)