quick answer pls

The AE of a system that releases 252.4 J of heat and does 120.8 J of work on the surroundings is J. 131.6 OA. 373.2 B. 373.2 Oc. 402.4 D - 131.6 OE. What is the rate law for the following mechanism: O2 (g) + NO (g) # NO3 (g) (fast equilibrium; rate of forward reaction: k1, rate of reverse reaction: k_1) NO (g) + NO3 (g) N204 (g) (slow, rate: k2) + OA. Rate= (k/k_1)[0212[NO] . B. Rate= k2 (kj/k-1) [02] [NO]2 oc Rate= (kj/k_1) [02][NO]2 OD. Rate= k2 [02][NO]2 Rate=k2 [NO][NO3] O E. The AE of a system that releases 252.4 J of heat and does 120.8 J of work on the surroundings is J. 131.6 OA. 373.2 B. 373.2 Oc. 402.4 D - 131.6 OE. Which combination of protons, neutrons, and electrons is correct for 1271 (atomic number:53)? 53 p, 74 n, 53 e A. B. 74 p, 74 n, 53 e Oc. 53 p, 53 n, 127 e D. 127 p, 53 n, 74 e OE. 74 p, 53 n, 74 e How many atoms of X gas are present in a 450 mL container at 35C and 0.97 atm? 1.17x 1025 X atoms a. Ob. 0.068 X atoms Oc. 1.0 x 1022 X atoms 7.9 x 1024 d. X atoms 0.017 X atoms e