Before revision: Charge hydration asymmetry (CHA) -- a characteristic dependence of hydration free energy on the sign of the solute charge -- quantifies the asymmetric response of water to electric field at microscopic level.
After revision: Charge hydration asymmetry (CHA) -- a characteristic dependence of hydration free energy on the sign of the solute charge--quantifies the asymmetric response of water to electric field at microscopic level.