23. Identify the following reactions as addition, substitution, or elimination. a. CH CH CH Br + NH3 - CH,CH.CH NH, + HBr b. CH,CH,OH HSO, CH2=CH2 + H20 C. CH2=CHCH3 + H, ARCH:-CH2-CH; d. CH CH.CH,CH, + Bright CH,CH,CHCH2-Br + HBr Br Br TT H-C=C-H+Brz (excess) H-C-C-H Br Br Br f. + NaOCH.CH, + HOCH,CH, + NaBr 24. Identify the following reactions as oxidation or reduction (Oxidizing and reducing agents are not shown.) OH b. vinya Yi-yi