When solid NaCl dissolves completely in liquid water
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
When solid NaCl dissolves completely in liquid water, which of the following statements best describes the resulting mixture at the particulate level?
(a) Neutral NaCl formula units remain intact and are dispersed uniformly among water molecules.
(b) Water reacts with NaCl to form NaOH and HCl, which then dissolve as separate molecules.
(c) Individual Na+ and Cl− ions become separated from one another, each surrounded by oriented water molecules that stabilize their charges.
(d) Na+ and Cl− ions stay paired together as NaCl(aq) units with minimal interaction with surrounding water.