Analyzing Dissolving Ionic Salts in Water (Animation)

1. How is energy required and released when an ionic solid is dissolved in water?

2.  What happens when an dissolving an ionic solid is an exothermic process? What about an endothermic process?  (can support with a picture as well as description

3.  Is dissolving an ionic salt in water a chemical or physical process? Explain.

4. Does doubling the amount of substance that dissolves in water correspond to a doubling of a temperature change in the solution? Why or why not?

5. What causes the changes in temperature that you observed to occur (how does it happen)? Draw a diagram at the molecular level that illustrates what is happening. In each case, identify the system and surrounding.

6. What other factors might affect temperature change when an ionic solid is dissolved in water?