Main Category Sub-category Demo Name Brief Description Demo Notes Demo # Type of Item Suggested uses
Chemical Formulas Empirical and Molecular Formulas Endothermic reaction of barium hydroxide and ammonium chloride,  The two solids are mixed in a covered flask and produce a smelly liquid that is cool to the touch when passed around, and that can make the flask stick to a wet board. also for speed of smell.  Also on Close up on Chemistry Ealy 19:54 (2:16 min) 34 Demonstration Can use to introduce the concept of hydrates
Chemical Formulas Empirical and Molecular Formulas Endothermic reaction of barium hydroxide and ammonium chloride,  The two solids are mixed in a covered flask and produce a smelly liquid that is cool to the touch when passed around, and that can make the flask stick to a wet board. Close up on Chemistry Ealy 19:54 (2:16 min)  (Set timer to zero when first text rolls on screen.) M12 Movie Can use to introduce the concept of hydrates
Chemical Formulas Ions and Ionic compounds Plastic Easter eggs as models for dissociation     107 Demonstration  
Chemical Formulas Ions and Ionic compounds Reaction of sodium and chlorine Not available - may be able to do in a hood, outside, or tape demo for use in class. risk of chlorine gas release 07.x Demonstration  
Chemical Formulas   Chemicals for show and tell  Assorted stock bottles of chemicals are brought on a cart.   You can discuss which are salts, etc.  For acids and bases see #130 155 Demonstration  
Chemical Periodicity Oxygen and oxides Reaction of alkali metals with water Na, K in water.  Reaction rate increases as you go down the period. Also on video: Close up on Chemistry Ealy 2:40 (5:57 min),  Media Guild Periodic Table near beginning 5 Demonstration  
Chemical Periodicity Oxygen and oxides Explosive reaction of hydrogen and oxygen (balloons) Hydrogen alone gives a swoosh and boom, hydrogen:oxygen 2:1 is very loud with percussion (you feel the explosion) Also video on Shakashiri tape 2 #20 and #21 8 Demonstration  
Chemical Periodicity Oxygen and oxides Reaction of carbon/iron and oxygen oxygen in a balloon is released into a beaker, a heated piece of iron wool or charcoal flames in it. To be done in hood. 11 Demonstration  
Chemical Periodicity Oxygen and oxides Methanol Cannon Combustion of ethanol or methanol in large cooler bottle.  The methanol burns with a swooshing sound out the top of the bottle, and may show "Northern lights" at the end. Also shown on Shakashiri tape 2 #22 17 Demonstration  
Chemical Periodicity Oxygen and oxides Nonburning money / hand on fire 50:50 EtOH:H2O  The ethanol solution is poured on the table and lighted, the hand is plunged down into it, displayed on fire, then waved to put out the flame.    The bill or towel can be soaked and "burned" but it isn't consumed. Always practice first to be sure the solution is still good. 29 Demonstration  
Chemical Periodicity Oxygen and oxides Burning magnesium in air, pH effect Mg in air: Hold a 6" strip of Mg ribbon with big metal tongs.  Turn off room lights and light Mg with the propane torch (and turn off torch).  The Mg burns so brightly that you shouldn't look directly at it, or you will have trouble seeing for a minute or so.  pH effect: burn it over a watch glass and dissolve the ashes in deionized water containing phenolphthalein to show it turn pink.   It pretty much lights the whole room (a shadowy light at the back of the room).  You can tell them about Mg in flash bulbs, the Mg + O2 equation yielding MgO; Mg + N2 yielding Mg3N2, then the Mg3N2 that is formed reacting with water to give Mg(OH)2 and NH3.  10% of the energy of combustion of Mg occurs as light, which is unique. 68 Demonstration  
Chemical Periodicity Oxygen and oxides Guncotton vs. cotton, and light sticks -flash of light, glowing light Take a shred of the guncotton and put it on a watch glass.  Use a long matchstick to light it, and it produces a bright flash of yellow light.   The light sticks can be at different temperatures before reaction.  Also on Close up on Chemistry Ealy 18:04 (1:50 min)  (Set timer to zero when first text rolls on screen.) 88 Demonstration  
Chemical Periodicity Oxygen and oxides Burning Sulfur in Oxygen Hood.  Beaker with spout, O2 from balloon, molten S in deflagration spoon   126 Demonstration  
Chemical Periodicity Oxygen and oxides Combustion of a cigarette Dr. Jones only.  He holds oxygen hose pinched closed and away after taking in some to his lungs.  He breathes out to a lighted cigarette, which flares instead of slow burning.   105.x Demonstration  
Chemical Periodicity Oxygen and oxides Combustion of trinitrocellulose Gun cotton - 4 days preparation.  Not available - may be able to do in a hood, outside, or tape demo for use in class. don't make, but buy instead-see demo #88 18.x Demonstration  
Chemical Periodicity Oxygen and oxides Reaction of alkali metals with water Reaction rate increases as you go down the period. Close up on Chemistry Ealy 2:40 (5:57 min.  Set timer to zero when first text rolls on screen.) M1 Movie  
Chemical Periodicity Oxygen and oxides Explosive reaction of hydrogen and oxygen Hydrogen alone gives a swoosh and boom, hydrogen:oxygen 2:1 is very loud with percussion (you feel the explosion) Shakashiri tape 2 #20 and #21 M2 Movie  
Chemical Periodicity Oxygen and oxides Methanol Cannon Combustion of ethanol or methanol in large cooler bottle.  The methanol burns with a swooshing sound out the top of the bottle, and may show "Northern lights" at the end.   M3 Movie  
Chemical Periodicity Oxygen and oxides Guncotton vs. cotton, and light sticks -flash of light, glowing light Take a shred of the guncotton and put it on a watch glass.  Use a long matchstick to light it, and it produces a bright flash of yellow light.    Close up on Chemistry Ealy 18:04 (1:50 min)  (Set timer to zero when first text rolls on screen.) M31 Movie  
Chemical Periodicity Trends in Periodic Table  Reaction of alkali metals with water Na, K in water.  Reaction rate increases as you go down the period. Also on video: Close up on Chemistry Ealy 2:40 (5:57 min),  Media Guild Periodic Table near beginning 5 Demonstration  
Chemical Periodicity Trends in Periodic Table  Reaction of sodium and chlorine Not available - may be able to do in a hood, outside, or tape demo for use in class. risk of chlorine gas release 07.x Demonstration  
Chemical Periodicity Trends in Periodic Table  Reaction of alkali metals with water Reaction rate increases as you go down the period. Close up on Chemistry Ealy 2:40 (5:57 min.  Set timer to zero when first text rolls on screen.) M1 Movie  
Chemical Periodicity   Reaction of aluminum and bromine Not available - may be able to do in a hood, outside, or tape demo for use in class. risk of bromine gas release 06. X Demonstration