Burning magnesium ribbon is plunged into the steam above boiling water in a conical flask. In the first method, the hydrogen that is formed is allowed to burn at the mouth of the flask. In the second method, the hydrogen is collected over water and tested with a lighted spill.
This practical is part of our Chemistry for non-specialists and Classic chemistry demonstrations collections.
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Teach the extinguishing properties and density of CO₂ safely
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Prepare students to use their learning in different situations
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Hayley Bennett investigates the chemistry of pyrotechnics
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A lesson presentation with activities for your 11–14 students on polymers and their properties
Use your smartphone to measure changes in concentration across different juice drinks at home or in the classroom. Includes a video aimed at learners, kit list, instruction and explanation.
2020-09-14T10:48:00Z
Explore polymers and redox via food wrap innovations with this activity for 11–16 students
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