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Electrolysis & Corrosion

11 minutes 57 seconds

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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

Experiments demonstrate the electrolysis of copper sulfate and the factors leading to corrosion. Other demonstrations focus on the chemical reactions of iron nails in water, sulfuric acid, sodium hydroxide, sodium chloride, and air.

Media Details

Runtime: 11 minutes 57 seconds

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.
School Chemistry Experiments
Episode 1
11 minutes 32 seconds
Grade Level: 10 - 12
Silvery metallic orb with iridescent spiky crystals adhering to the bottom. Caption: Iodine crystals are not only interesting
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Episode 2
12 minutes 51 seconds
Grade Level: 6 - 12
Narrow curving tube exits into a wider tube. Both are underwater. Caption: whether hydrogen has a higher or lower density than air.
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Episode 3
10 minutes 27 seconds
Grade Level: 9 - 12
Beaker of liquid with a yellow substance dissolving. Caption: It was formed by the oxidation of potassium iodide.
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Episode 4
14 minutes 5 seconds
Grade Level: 9 - 12
Test tube with aqua liquid in the bottom is immersed in ice water. Caption: and at low temperatures, the reaction is slowed down.
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Episode 5
15 minutes 25 seconds
Grade Level: 10 - 12
Person pouring clear liquid into 4 beakers. Caption:  Nitric acid is a very strong oxidizing agent.
School Chemistry Experiments
Episode 6
11 minutes 47 seconds
Grade Level: 10 - 12
Broken pottery with a lump of metal on the ground. Caption: we find iron reduced from the iron(III) oxide.
School Chemistry Experiments
Episode 7
15 minutes 18 seconds
Grade Level: 10 - 12
A large beaker with a substance in the bottom, a smaller beaker suspended above it. Caption: and yet their properties are so different.
School Chemistry Experiments
Episode 8
22 minutes 1 seconds
Grade Level: 10 - 12
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
School Chemistry Experiments
Episode 9
15 minutes 41 seconds
Grade Level: 10 - 12
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
School Chemistry Experiments
Episode 10
11 minutes 57 seconds
Grade Level: 9 - 12