What is the average composition of the total vapor distilled and the composition of the liquid left? b. if this same vaporization is done in an equilibrium or flash distillation and 40 kg mol are distilled, what is the composition of the vapor distilled and of the liquid left?

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.

Is a logical series of steps

Its trait is different and it the organism survive

I'm pretty sure the answer is alcohol