Lecture Experiments
If one rubs the magic lamp the genie will come out.
Magnesium turnings and magnesium pencil sharpener burn in a cavity of dry ice blocks.
A burning gel can be produced by mixing aqueous solution of calcium acetate and ethanol.
This experiment demonstrate the magic of the chemistry. It demonstrates water disappearance which is actually absorbed by a polymer.
Mercury beating heart: Classical demonstration
Miniature mercury pool in a watch glass is covered with aqueous solution of sulfuric acid and hydrogen peroxide. When iron nail touches the mercury surface with the tip mercury starts to beat like a heart.
Mercury beating heart: Electrochemical modification
When mercury is covered with aqueous solution of sulfuric acid a touch with a point of graphite cathode produces rapid pulsations of the mercury.
An iron nail can be used for writing in electrochemical system consisted of aluminum foil as second electrode besides the nail and filter paper soaked with electrolyte, phenolphthalein and potassium iodide.
A metal spoon placed in the hot water disappears. It is prepared from low temperature melting alloy.