After several seconds the flames are extinguished and the towel appears unharmed by the fire. Using crucible tongs, dip a lab towel into a beaker containing a 50/50 mixture of isopropyl alcohol and ...

To Conduct Demonstration Heat NaOH/Zn mixture to near boiling in a crucible (3.5 in in diameter with handle ... Wash them and blot them dry. Using tongs, hold each penny in a Bunsen burner flame (3-4 ...