Question

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

Explanation:

Concentration of a solution is amount of solute per amount of solution or solvent. Adding water (dilution) decreases concentration, evaporating water increases it, and adding solute increases it. Removing solution from the container doesn't change the proportion of solute to solvent in the remaining solution.

Answer:

B. removing solution from the container