| Videos: 53 results |
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
|
Nonmetals
Other flames and explosions involving nonmetals are demonstrated.
Reactions |
Descriptive Chemistry |
Nonmetals
|
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
|
Transition Metals
Videos of flames with a Meker burner for transition metals are shown.
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
|
