Listing all results (97)

A Solid-solid Reaction

In this classic demonstration, from the Royal Society of Chemistry, the solids of lead nitrate and potassium iodide are shaken together and yellow lead iodide is formed.

The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.

Curriculum links...

‘Magic’ Writing

In this classic demonstration, from the Royal Society of Chemistry, messages are written on filter paper using colourless dilute solutions, including those of several transition metals. When the filter papers are sprayed with other solutions, the messages appear in a variety of colours.

The resource...

Dyeing – Three Colours from the Same Dye-bath

In this classic demonstration, from the Royal Society of Chemistry, three different materials such as wool, silk and nylon are placed in a dye bath containing blue, red and yellow dye. The materials emerge different colours due to the interactions of the materials and the dyes.

The resource provides a list...

The Reaction of Sodium with Chlorine

In this classic demonstration, from the Royal Society of Chemistry, sodium is placed in a gas jar of chlorine. The reaction is initiated by adding a small drop of water to the sodium. A vigorous exothermic reaction follows, producing white sodium chloride.

The resource provides a list of apparatus and...

Unsaturated Compounds in Foods

In this classic demonstration, from the Royal Society of Chemistry, different samples of food are placed in a gas jar containing bromine gas. The colour of the bromine gas fades, demonstrating that the food contains a carbon-carbon double bond.

The resource provides a list of apparatus and chemicals needed...

Making Silicon and Silanes from Sand

In this classic demonstration, from the Royal Society of Chemistry, magnesium and sand are heated together producing silicon in a very exothermic reaction. Acid is used to remove unreacted magnesium and magnesium oxide.

The resource provides a list of apparatus and chemicals needed for the experiment,...

Red, White and Blue

In this classic demonstration, from the Royal Society of Chemistry, a solution of ammonia is poured into three beakers containing, phenolphthalein, lead nitrate and copper sulphate. The solutions become red, milky white and deep blue but pouring them into acid reverses the reaction.

The resource provides a...

The Reduction of Copper Oxide

In this classic demonstration, from the Royal Society of Chemistry, copper oxide is reduced using natural gas to produce copper. It is possible to speed up the reaction by bubbling the gas through ethanol.

The resource provides a list of apparatus and chemicals needed for the experiment, together with...

The Ammonium Dichromate ‘Volcano’

In this classic demonstration, from the Royal Society of Chemistry, a conical pile of orange ammonium dichromate is ignited. This produces a large volume of green chromium (III) oxide and steam.

The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips...

Sulphuric Acid as a Dehydrating Agent

In this classic demonstration, from the Royal Society of Chemistry, concentrated sulphuric acid is added to a beaker of glucose, the sulphuric acid dehydrates the glucose leaving a pillar of carbon rising from the beaker.

The resource provides a list of apparatus and chemicals needed for the experiment,...

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