Question

a solution reaches dynamic equilibrium when the ____ are the same.

• masses of solvent and solute
• rates of crystallization and dissolution
• pressure and color
• temperatures of solvent and solute

Explanation:

In a solution, dynamic equilibrium is achieved when the rate at which the solute dissolves (dissolution) is equal to the rate at which it comes out of solution (crystallization). Masses of solvent and solute, pressure and color, and temperatures of solvent and solute are not what define dynamic - equilibrium in this context.

Answer:

B. rates of crystallization and dissolution