Based on your understanding, describe and/or represent what is occuring when water, a pure solvent, is freezing and compare it to the freezing of a salt water solution. Describe what you expect to observe on the macroscopic level (see, hear, feel, smell) and what is occurring on the molecular level (explain using words/pictures what you think molecules, atoms, and/or ions are doing that results in your observations) at the following stages: (a) before the solvent/solution starts to freeze; and (b) after the solvent/solution is frozen. Molecules, atoms, and ions can be represented with symbols. If you use symbols, be sure to provide a key.