All Reactions and synthesis articles – Page 10

Resource
The best catalyst to decompose hydrogen peroxide

Develop learner’s ideas of catalysis with this open-ended problem using hydrogen peroxide.
Resource
Identifying three unknown white solids

Devise experiments to label three white solids correctly by using chemicals and apparatus in the laboratory.
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What compound? Identify and analyse

Learners can devise their own testing system to identify the nature of a mystery compound.
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Finding the right ionic compound

Devise a procedure to identify four solids and then use this to carry out the identification.
Resource
Identifying four unknown solutions

Allow learner’s the opportunity to devise their own testing protocols to identify chloride ions in four solutions.
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Find the chloride

Devise experiments to determine which of five solids is the chloride by using chemicals and apparatus in the laboratory.
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Which detergent is best?

Explain two observations related to the production of a jelly-like solid when two detergents were used in combination.
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Cobalt complexes

Devise structures for cobalt complexes given, decide how to distinguish between the four complexes, and identify some properties that are the same for all four complexes.
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Carbon and copper oxide

Create tests to identify carbon and copper oxide, using knowledge of acids, redox reactions, and metal oxides.
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Measuring CO2 from reactions

Use chemicals and apparatus, devise experiments and determine the amount of carbon dioxide that can be obtained from a mixture of two solids
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Reacting aluminium foil with acid

React aluminium foil and hydrochloric acid with a range of catalysts to discover which serves the reaction best.
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Detecting copper in black solids

Devise experiments to identify a black solid sample by using chemicals and apparatus in the laboratory.
Resource
Identifying five unknown white solids

Learners are provided with five mystery white solids, and need to devise their own experiments to identify each.
Demonstration
Exploding bubbles of hydrogen and oxygen

In association with Nuffield Foundation

Create a small explosion in this demonstration by electrolysing water to produce hydrogen and oxygen bubbles. Includes kit list, video and safety instructions.
Demonstration
Cracking hydrocarbons in liquid paraffin with a catalyst

In association with Nuffield Foundation

Model the industrial process of cracking larger hydrocarbons to produce smaller alkanes in this demonstration or class practical. Includes kit list and safety instructions.
Demonstration
Turning ‘red wine’ into ‘water’

In association with Nuffield Foundation

Use acidified potassium permanganate – or ‘red wine’ – to make ‘water’, ‘milk’ and ‘lemonade’ in this engaging demonstration. Includes kit list and safety instructions.
Demonstration
Heating group 1 metals in air and in chlorine

In association with Nuffield Foundation

Use this demonstration to illustrate the reactions of lithium, sodium and potassium in air and in chlorine. Includes kit list, video and safety instructions.
Demonstration
The silver mirror test with Tollens’ reagent

In association with Nuffield Foundation

Try this practical to explore the mirror-making reaction between silver nitrate (Tollens’ reagent) and glucose. Includes kit list, video and safety instructions.
Demonstration
‘Magic’ writing with colour changing reactions

In association with Nuffield Foundation

Reveal invisible messages or pictures drawn with aqueous solutions by spraying them with suitable reagents in this demonstration. Includes kit list and safety instructions.
Class experiment
Microscale extraction of copper

In association with Nuffield Foundation

Try this practical to reduce copper(II) oxide to copper using hydrogen, revealing their positions in the reactivity series. Includes kit list and safety instructions.