A small laboratory towel is dipped in a mixture of alcohol and water and ignited. After several seconds the flames are extinguished and the towel appears unharmed by the fire. Using crucible tongs, ...

To Conduct Demonstration Heat NaOH/Zn mixture to near boiling in a crucible (3.5 in in diameter with handle) on a hot plate. Place one or more cleaned pennies into the mixture and continue to warm for ...