Final answer:
Sugar and salt have dissimilar dissolving processes; sugar as a molecular compound disperses molecule by molecule, while salt splits into ions. Stirring affects the dissolution rate but not the solubility, and both substances create stable, true solutions.
Step-by-step explanation:
The dissolving process of sugar and salt in water differ primarily due to their molecular and ionic nature. Sugar, a molecular compound, dissolves in water as its individual molecules spread out.
In contrast, salt, an ionic compound, dissociates into ions when it dissolves. While stirring accelerates the dissolution rate for both substances by moving fresh water molecules to the solute, it does not change the total amount of solute that will dissolve.
Salt and sugar are both soluble in water and form true solutions, mixtures that are stable and homogeneous at the molecular level. A true solution remains mixed when passed through a filter and does not settle over time.