All Reactions and synthesis articles – Page 15
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DemonstrationSulfuric acid as a dehydrating agent
Try these two demonstrations to illustrate the difference between dehydration and drying using sulfuric acid. Includes kit list and safety instructions.
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Class experimentUnsaturation in fats and oils
Use this class practical to investigate the amounts of unsaturated fats and oils in different foods. Includes kit list and safety instructions.
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DemonstrationCombustion of hydrogen in air
Try this demonstration or class experiment to investigate how varying amounts of fuel and oxygen affect combustion. Includes kit list and safety instructions.
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NewsPurely inorganic aromatic ion synthesised
Aromatic anion made from nitrogen and phosphorus synthesised
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ResourceModern applications
Inspirational chemistry book chapter ‘Modern applications’. This chapter suggests games, activities, practicals and demonstrations for teaching various topics, such as observing reactions, making new medicines and composite materials.
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DemonstrationThe ‘Old Nassau’ or Halloween clock reaction
Illustrate dramatic colour changes as a result of redox and precipitation reactions in this vivid demonstration. Includes kit list and safety instructions.
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Class experimentExothermic metal displacement reactions
Try this class experiment to explore what happens when different metals are added to a copper(II) sulfate solution. Includes kit list and safety instructions.
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Class experimentPreventing rust
Try this practical to test methods for preventing rust on iron nails, including painting, greasing and sacrificial protection. Includes kit list and safety instructions.
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DemonstrationFat-pan fires and the conditions for combustion
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.
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Class experimentThe properties of alcohols
Ethanol and propan-1-ol are tested for pH, reaction with sodium, combustion and oxidation with acidified dichromate(VI) solution. Includes kit list and safety instructions.
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Class experimentReactions of chlorine with water or halide ions
Generate chlorine gas on a microscale and investigate its reactions with water or halide ions in this class practical. Includes kit list and safety instructions.
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Class experimentThe reactivity of iron
Illustrate iron’s position in the reactivity series by heating it with copper and magnesium oxides in this practical. Includes kit list and safety instructions.
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Class experimentExothermic metal–acid reactions
Use this class practical to explore the temperature changes resulting from adding different metals to hydrochloric acid. Includes kit list and safety instructions.
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DemonstrationSilver and lead halides
Try this practical or demonstration to produce silver and lead halides in a series of precipitation reactions. Includes kit list and safety instructions.
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DemonstrationThermal decomposition of nitrates: ‘writing with fire’
Make an invisible message ‘glow’ by applying a lighted splint to filter paper treated with sodium nitrate in this demonstration. Includes kit list and safety instructions.
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Class experimentPreparing salts by neutralisation of oxides and carbonates
Try these class experiments to illustrate the production of soluble salts from insoluble metal oxides and carbonates. Includes kit list and safety instructions.
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Class experimentA red–blue oscillating reaction
Use this practical or demonstration to provide a visual illustration of an oscillating reaction and redox equilibria. Includes kit list and safety instructions.
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DemonstrationReacting magnesium with copper(II) oxide
Illustrate reduction, oxidation and the relative reactivity of magnesium and copper(II) oxide in this demonstration. Includes kit list and safety instructions.
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Class experimentReacting copper(II) oxide with sulfuric acid
Illustrate the reaction of an insoluble metal oxide with a dilute acid to produce crystals of a soluble salt in this class practical. Includes kit list and safety instructions.