NaCl(s) ⇄ Na+(aq) + Cl–(aq)
A student is testing two clear liquids. One liquid is water that has been modified with hydroxide ions to have a basic pH. The other liquid is a sports drink that contains added electrolytes, including Na+(aq). The student has available to them multiple samples of a NaCl solution and the ability to test the concentration of ions in the solution. When NaCl molecules are formed, they crystalize (form crystals). How can the student use the equilibrium reaction of sodium chloride to determine which liquid is which? In three to five sentences, explain your answer.