Calculate how much of the 0,005mol/dm3 of KMnO4 solution is needed to make four 50cm3 solutions with the following concentration 0,0001;0,0003;0,0006;0,0008 mol/dm3

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.

Ionic compounds dissociate into component ions dissolved into a solution creating substances called "electrolytes".hope my answer has you : )

Answer the air near the ground cools to its dew point