Plz help Rank these five scenarios from lowest freezing point (1) to highest freezing point (5). Each solution was made using 1.0 kg water as the solvent and the indicated number of moles of each solute.

0.5 mol NaCl
1.0 mol K3PO4
2.0 mol glucose
1.5 mol ethylene glycol
0.8 mol MgCl2

The answer should be vaporization 

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

The name for subatomic particles in an atom is called a proton