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Videos: 52 results
Properties of Gases  
Some properties of gases are demonstrated, including the powerful force of atmospheric pressure and aspects of phase changes.
Gases |
Physical Properties
Reactions: Alkali Metals with Air  
Alkali Metals are shown reacting in air.
Descriptive Chemistry |
Oxidation / Reduction
Hydrogen Balloon Explosions  
Balloons containing various substances and hydrogen are exploded, revealing characteristic flame colors. In all cases except one, the substance had been mixed with methanol and water.
Descriptive Chemistry |
Spectroscopy
Main Group Metals  
Various compounds of main group metals mixed with methanol are sprayed into the flame of a Bunsen burner.
Descriptive Chemistry |
Spectroscopy
Sprayed into Burner Flame  
Saturated methanol solutions of approximately 1.0 M were sprayed into the flame of a Bunsen burner. The spray produces characteristic atomic emission colors.
Descriptive Chemistry |
Spectroscopy
Main-Group Metals  
Videos of flames with a Meker burner for main-group metals are shown.
Descriptive Chemistry |
Spectroscopy
Metalloids  
Videos of flames with a Meker burner for metalloids are shown.
Descriptive Chemistry |
Spectroscopy
Other Main-Group Metals  
Balloons containing hydrogen and other main-group metals are exploded.
Descriptive Chemistry |
Spectroscopy
Flame Colors  
Substances are introduced into a flame in various ways. The color of the resulting flame depends on the substance. These are organized by method/technique.
Descriptive Chemistry |
Spectroscopy
Nonmetals  
Nonmetals are ignited under various conditions.
Reactions |
Descriptive Chemistry |
Nonmetals
Aluminum: Reactions  
Reactions involving aluminum are demonstrated.
Reactions |
Descriptive Chemistry
Reactions with Zinc  
Reactions involving zinc are demonstrated.
Reactions |
Descriptive Chemistry
Hydrogen  
Reactions and explosions involving hydrogen and its compounds are demonstrated.
Reactions |
Descriptive Chemistry
Oxygen  
Reactions and explosions involving oxygen and its compounds are demonstrated.
Reactions |
Descriptive Chemistry
Sulfur  
Reactions and explosions involving sulfur are demonstrated.
Reactions |
Descriptive Chemistry
Alkali Metals Reactions  
Reactions of alkali metals in air, water, acids, and bases.
Descriptive Chemistry |
Oxidation / Reduction
Alkaline Earths Reactions  
Reactions of the alkaline earth metals in air, water, acid, and other compounds.
Descriptive Chemistry |
Reactions
Overvoltage  
Zinc metal reacts with hydrochloric acid, generating hydrogen gas. However, when a strip of nickel, copper, platinum or lead is placed in hydrochloric acid, no reaction is observed.
Descriptive Chemistry |
Electrochemistry
Discovery Videos  Lyubov Hoffman Laroche, Gary Wulfsberg, Barbara Young
The use of digital video for instruction has many advantages. In many situations the only way to present some chemical phenomena is through the use of video. The two video lessons presented here are examples intended to supplement our article in the August 2003 issue of JCE.
Descriptive Chemistry |
Periodicity / Periodic Table
Reactions: Nonmetals with Air  
Various nonmetallic elements reacting with air are shown.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Oxidation-Reduction Reactions  
Electrolysis reactions and the action of nitric acid on iron and copper illustrate the concepts of oxidation and reduction. Also three oxidation-reduction reactions are shown under a microscope.
Oxidation / Reduction |
Descriptive Chemistry |
Reactions
Reaction: Potassium with Water  
Demonstrations of potassium reacting in water.
Descriptive Chemistry |
Water / Water Chemistry
Combustion Reactions  
A number of dramatic combustion reactions are demonstrated.
Descriptive Chemistry |
Reactions |
Applications of Chemistry
Reactions: Alkali Metals with Other Elements  
Alkali Metals are shown reacting with various elements.
Oxidation / Reduction |
Reactions |
Descriptive Chemistry
Reactions: Alkaline Earth Metals with Air  
Alkali earth metals are shown reacting in air.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Transition Metals  
Various chlorides of transition metals mixed with methanol are sprayed into the flame of a Bunsen burner.
Descriptive Chemistry |
Spectroscopy |
Transition Elements
Metals  
Samples of metals are ignited or heated over a flame, resulting in oxide formation.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Combustion of White Phosphorus  
Phosphorus combines with oxygen in a highly exothermic reaction.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions with Potassium  
Reactions involving potassium are demonstrated.
Oxidation / Reduction |
Reactions |
Descriptive Chemistry
Reactions with Transition Metals  
A number of reactions with transition metals are demonstrated.
Reactions |
Descriptive Chemistry |
Transition Elements
Halogens  
Other flames and explosions involving halogens are demonstrated.
Reactions |
Descriptive Chemistry |
Applications of Chemistry
Flames and Explosions, Other Than Combustion Reactions  
Flames and explosions, other than combustion reactions, are demonstrated.
Descriptive Chemistry |
Reactions |
Applications of Chemistry
Transition Element Reactions  
Reactions of transition elements in water, air, acids, and bases.
Descriptive Chemistry |
Reactions |
Transition Elements
Oxidation-Reduction Reactions  
Reactions or demonstrations exploring oxidation/reduction chemistry.
Reactions |
Oxidation / Reduction |
Descriptive Chemistry
Electronic Structure-Periodic Table  
Reactions exploring the concepts of atomic structure.
Atomic Properties / Structure |
Descriptive Chemistry
Reaction: Sodium with Acids  
Reaction of sodium with acid.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions: Nonmetals with Base   
Nonmetallic elements are shown reacting with bases.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions: Nonmetals with Acids  
Nonmetallic elements are shown reacting with acids.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions: Alkali Metals with Acids  
Alkali metals are shown reacting with acids.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions: Alkali Metals with Base  
Alkali Metals are shown reacting with base.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Reactions: Alkaline Earth Metals with Acids  
Alkali earth metals are shown reacting with acids.
Acids / Bases |
Descriptive Chemistry |
Oxidation / Reduction |
Reactions
Closeup Videos of Flames from Aqueous Solutions  
Aqueous solutions of common compounds are introduced via aerosol to flame, producing their characteristic emission colors.
Descriptive Chemistry |
Spectroscopy |
Aqueous Solution Chemistry
Exploding Hydrogen Balloons  
Explosions of hydrogen-filled balloons are demonstrated.
Descriptive Chemistry |
Spectroscopy |
Water / Water Chemistry
Reactions with Sodium  
Reactions involving sodium are demonstrated.
Oxidation / Reduction |
Reactions |
Acids / Bases |
Descriptive Chemistry
Colors of Elements in a Flame  
Aqueous solutions of various compounds are sprayed into a Meeker burner flame from an atomizer.
Atomic Properties / Structure |
Descriptive Chemistry |
Spectroscopy
Reactions: Nonmetals with Water  
Nonmetallic elements are shown reacting with water.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions |
Water / Water Chemistry
Reactions: Alkaline Earth Metals with Water  
Alkali earth metals are shown reacting in water.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions |
Water / Water Chemistry
Reactions: Alkali Metals with Water  
Alkali Metals are shown reacting in water.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions |
Water / Water Chemistry |
Acids / Bases
Acid Base Reactions of Sulfur Dioxide  
Acid base reactions involving sulfur dioxide are shown.
Acids / Bases |
Gases |
Reactions |
Oxidation / Reduction |
Precipitation / Solubility |
Descriptive Chemistry |
Applications of Chemistry
Reactions of Sulfuric Acid  
Reactions of materials reacting with sulfuric acid are shown.
Acids / Bases |
Oxidation / Reduction |
Reactions |
Descriptive Chemistry |
Aqueous Solution Chemistry |
Precipitation / Solubility
Thermochromism: Mercury(II) Iodide  
When red-orange Mercury(II) Iodide (HgI2) is heated, it undergoes a phase transition at 126oC to a pale yellow form. As the heated sample cools, it gradually returns to the original red-orange color.
Crystals / Crystallography |
Phases / Phase Transitions / Diagrams |
Physical Properties |
Solid State Chemistry |
Solids |
Descriptive Chemistry
Oxidation-Reduction (Redox) Reactions  
Demonstrations exploring oxidation/reduction chemistry.
Aqueous Solution Chemistry |
Electrochemistry |
Oxidation / Reduction |
Water / Water Chemistry |
Acids / Bases |
pH |
Conductivity |
Reactions |
Applications of Chemistry |
Descriptive Chemistry |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus