Sodium Iodide and Lead (II) Acetate
Over the years, there have been scholars who have learned to study the transformation of substances. At that time, I want to explore the response between Sodium Iodide and Lead (II) Acetate.

Put sodium iodide in the vessel, its color is pure, pure and crystalline. Replicate lead (II) acetate and slowly enter it. Russia, a strange phenomenon is born. The two touch each other, and there seems to be a hidden connection, and the liquid gradually rises, and the color changes and the state is different. At the beginning, there is still a clear liquid, and not long after, there is a sedimentation at the bottom, the color is like light yellow, the quality is like powder, and they come down one after another.

Looking at this change, all living beings are shocked. Or: "This is the wonder of transformation, things and things are combined, not unique and easy, and the sex has also changed." Another person asked: "Why is this sinking person?" The teacher said: "When the two meet, transformation produces iodine and lead, and the color is yellow and sinking."

When all living beings heard it, they suddenly realized it. Then they memorized its image in detail, analyzed its reason, and understood the way of materialization. From then on, in the study of chemistry, the deeper the knowledge, the more serious the pursuit.