What is the next atomic orbital in the following series? 1s, 2s, 2p, 3s, 3p, a. 3d b. 2d c. 4s d. 2f

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)