ocr: ch 112 final 1987 page 3 According to this mechanism th seasured ovarall rate constant k should be equal to: (a) *3 (b144*ky (c) (k, **gl/k, O)4y, 12. A catalyst speeds up a chemical reaction by: (a) Increasing the kinetic energy of the molecules. (b increasing the frequency of the molecular collisions. (c) increasing the activation energy (d) increasing the number of molecules with energies in excess of the activation energy. 13. Iron (Z 26) has the following number of unpalred electrons (a) 0 (b) 2 (ch 4 (6) 6 14. Select the largest ion from the fotlowing isoelectronic serles: (a) ca2* (b) K ...
