chemical reactions

The “Pharaoh’s Serpent” chemical reaction involves the thermal decomposition of mercury (II) thiocyanate:^1,2

The floating soap bubble¹ is an experiment that is very easy to set up and carry out (Video 1).

Introduction: Did you know that sand can be converted into a mixture of gases that spontaneously ignites in air? The procedures involved are relatively simple to perform, spectacular to observe, and relate to a rich assortment of chemical principles.

In Chemical Mystery #18: Peek A Boo Blue,¹ Blue Powerade is observed to change to green, and then to a yellow color. When the yellow-colored solution is disturbed by pouring it, it shifts back to green or blue-green.