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Hydrogen

10 minutes 27 seconds

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Narrow curving tube exits into a wider tube. Both are underwater. Caption: whether hydrogen has a higher or lower density than air.

Demonstrates the production and collection of hydrogen in a chemistry lab, and testing of its purity. Also shows and explains other chemical reactions related to this element.

Media Details

Runtime: 10 minutes 27 seconds

Topic: Science
Subtopic: Chemistry, Science Experiments
Grade/Interest Level: 9 - 12
Standards:

Release Year: 2001
Producer/Distributor: Landmark Media
Series: School Chemistry Experiments

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Open flame with a piece of metal in it. Flame below the metal is blue, above the metal is orange. Ca2+. Caption: Calcium compounds show a typical orange-red coloring.

Silvery metallic orb with iridescent spiky crystals adhering to the bottom. Caption: Iodine crystals are not only interesting

Narrow curving tube exits into a wider tube. Both are underwater. Caption: whether hydrogen has a higher or lower density than air.

Beaker of liquid with a yellow substance dissolving. Caption: It was formed by the oxidation of potassium iodide.

Test tube with aqua liquid in the bottom is immersed in ice water. Caption: and at low temperatures, the reaction is slowed down.

Person pouring clear liquid into 4 beakers. Caption: Nitric acid is a very strong oxidizing agent.

Broken pottery with a lump of metal on the ground. Caption: we find iron reduced from the iron(III) oxide.

A large beaker with a substance in the bottom, a smaller beaker suspended above it. Caption: and yet their properties are so different.

Beakers labelled 1M KOH, ind. and 1M HCI. Another beaker with a greenish liquid has a tube with a nozzle at the mouth of it. Caption: The neutral solutions will be changed

Measurement device with leads attached. A rectangular box filled with fluid and a person putting a lid on the box with two leads reaching into the liquid. Caption: An important part of the electrolysis cell