All Demonstration articles – Page 3

Demonstration

The effect of concentration and temperature on an equilibrium | Le Chatelier’s principle

In association with Nuffield Foundation

Try this demonstration to illustrate how changing chlorine concentration or temperature shifts the position of an equilibrium. Includes kit list and safety instructions.

Demonstration

Reactions of chlorine, bromine and iodine with aluminium

In association with Nuffield Foundation

Try this demonstration to produce some spectacular exothermic redox reactions by reacting aluminium with halogens. Includes kit list and safety instructions.

Demonstration

Anodising aluminium

In association with Nuffield Foundation

Explore an application of electrolysis in this demonstration by anodising aluminium to improve corrosion resistance. Includes kit list and safety instructions.

Demonstration

The cornflour ‘bomb’

In association with Nuffield Foundation

Create a small explosion inside a tin can using cornflour in this demonstration, illustrating energy transformation. Includes kit list and safety instructions.

Demonstration

The reaction of ethyne with chlorine

In association with Nuffield Foundation

Try this teacher demonstration with your students to illustrate the spontaneous reaction of ethyne and chlorine. Includes kit list and safety instructions.

Demonstration

The conversion of alcohols to halogenoalkanes

In association with Nuffield Foundation

Try this practical or demonstration to produce bromoethane in a substitution reaction between ethanol and phosphorus tribromide. Includes kit list and safety instructions.

Demonstration

Handling liquid bromine and preparing bromine water

In association with Nuffield Foundation

Find out how to handle liquid bromine and prepare bromine water safely using these health, safety and technical notes.

Demonstration

Reacting aluminium and iodine

In association with Nuffield Foundation

Illustrate the spectacular reaction between aluminium and iodine with water as a catalyst in this demonstration. Includes kit list and safety instructions.

Demonstration

Water expands when it freezes

In association with Nuffield Foundation

Use this demonstration to show that water expands when it freezes, showing students how it can break a bottle. Includes kit list and safety instructions.

Demonstration

Addition polymerisation with phenylethene

In association with Nuffield Foundation

Use this practical or demonstration as an example of addition polymerisation using phenylethene to form polyphenylethene. Includes kit list and safety instructions.

Demonstration

Ammonium dichromate volcano

In association with Nuffield Foundation

Try this demonstration to create a mini volcanic eruption illustrating the decomposition of ammonium dichromate. Includes kit list and safety instructions.

Demonstration

Sulfuric acid as a dehydrating agent

In association with Nuffield Foundation

Try these two demonstrations to illustrate the difference between dehydration and drying using sulfuric acid. Includes kit list and safety instructions.

Demonstration

Combustion of hydrogen in air

In association with Nuffield Foundation

Try this demonstration or class experiment to investigate how varying amounts of fuel and oxygen affect combustion. Includes kit list and safety instructions.

Demonstration

The ‘Old Nassau’ or Halloween clock reaction

In association with Nuffield Foundation

Illustrate dramatic colour changes as a result of redox and precipitation reactions in this vivid demonstration. Includes kit list and safety instructions.

Demonstration

How can hardness in water be removed?

In association with Nuffield Foundation

Investigate the effects of three treatments for softening hard water in this class practical and demonstration. Includes kit list and safety instructions.

Demonstration

Fat-pan fires and the conditions for combustion

In association with Nuffield Foundation

Use this demonstration to illustrate the conditions required to start combustion, and how to put out a pan fire safely. Includes kit list and safety instructions.

Demonstration

The formation of a sol

In association with Nuffield Foundation

Convert a rusty-brown precipitate of iron(III) hydroxide into a cherry-red iron(III) oxide sol in this demonstration. Includes kit list and safety instructions.

Demonstration

Identifying the products of combustion

In association with Nuffield Foundation

Illustrate the presence of water and carbon dioxide in the products of hydrocarbon combustion in this demonstration. Includes kit list and safety instructions.

Demonstration

The composition and formula of water

In association with Nuffield Foundation

Try this demonstration to determine the formula of water through the reaction of copper(II) oxide with hydrogen. Includes kit list and safety instructions.

Demonstration

Silver and lead halides

In association with Nuffield Foundation

Try this practical or demonstration to produce silver and lead halides in a series of precipitation reactions. Includes kit list and safety instructions.