Question

after which action would the concentration of a solution remain constant? (1 point) evaporating water from the container adding water to the solution removing solution from the container adding solute to the solution

Explanation:

Concentration is amount of solute per amount of solution. Evaporating water changes solvent amount, adding water dilutes, adding solute increases concentration. Removing solution keeps proportion of solute - to - solvent the same, thus concentration constant.

Answer:

removing solution from the container