What kind of forces act between molecules

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

This drawing shows a human body system. what is the primary function of this body system?

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.