Yaall did i do these equations right??? I need help asap

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

What human activity increases beach erosion?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?