Molality (m) is _______. A. the number of moles of solute / the number of kilograms of solvent B. the number of kilograms of sol
vent / the number of moles of solute C. the number of moles of a substance / the number of liters of solution D. the number of liters of solution / the number of moles of a substance E. None of the Above
The atom in a sample of an element must contain nuclei with the same number of protons. If the protons change in number, then the element will modify as well.