Addition of a liquid to a crystalline substance produces smoke an intense violet flames. Set up a heat resistant mat next to an operating vent in the bench top. Add 10 to 15 drops of glycerol to the ...

Prop open exit door in Chem 140. On a wire cart, invert a large square plastic container and place the heat resistant mat on top. Place the hollowed out piece of dry ice on top of the heat resistant ...