Which of the following is NOT conserved during the combustion reaction of propane shown below? Select all that apply. C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)

moles of molecules
moles of atoms
atoms
mass
none of the above

Woah that’s a lot to read xd i’ll try though. i’ll get back t you if. i know the andwer

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.

Sorry i dont understand the question can you rephase it?

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck