23.1 Identify any initiation, propagation, retardation, inhibition, and termination steps in the following chain mechanisms: (a) (1) AH → A. +H. (2) A. → B. + C (3) AH+ B. → A. + D (4) A+B. → P (b) (1) A₂ → A + A. (2) A. → B. + C (3) A. + P→ B. (4) A+B →→P

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