1. The first well remained colorless. Why? 2. Does tia confirm or negate your negative results?

3. Why does either answer you give still remain tentative?

4. The third, fourth, and fifth Wells showed brown, but were not a deeper brown than the second well even though there were increasing amounts of potassium iodide.

A. Explain why this occurred

B. At this point, how could you cause the brown to become deeper in Wells containing more potassium iodide?