Using the table of standard formation enthalpies that you'll find under the aleks data tab, calculate the reaction enthalpy of this reaction under standard conditions:
c2h5oh(l)+3o2(> 2co2(g)+3h2o(l)
round your answer to the nearest whole number.

It’s b. mass i searched it up

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.