hi! i would love some help because i am completely lost on what I did wrong

18. The following reaction has AG. = -3.6 k.J/mol at 298 K. CH,Br + eN - CH,CN + Br (1) Which direction (left or right) of the reaction goes at the standard conditions? (2 pt) right (2) Calculate the equilibrium constant K., at 25 .C. R=8.314 J/(mol.K). (2 pt) [ CH,CM ] [ Br ] [ CN- ] [ CH,B.] 3 Kee = 207.85 19. Which of the following compounds are the same? (4 pts) H H H H H H H H CH CH, CH, H CH, H-C-C-C-H H -H H-C-C-H H-C-C-H H-C-C-H H H CH, H H H H H CH. H H CH, H A B C D E List the same compounds from above (include all of them): BOF 20. Calculate the enthalpy of the following reaction using the provided average bond dissociation energies (BDEs). (4 points) 431 1239 365 1239 451 1603 HCI + CH,Br - CH,CI + HBr = 407?x Average Bond Dissociation Energies (BDE): Bond BDE (kJ/mol) H-CI 431 C-H 413 C-Br 280 C-CI 339 H-Br 366