The background and chemistry of burning calcium with hydrogen and oxygen to make ‘limelight’.
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Anecdotes in the limelight
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The background and chemistry of burning calcium with hydrogen and oxygen to make ‘limelight’.
The story of the discovery of the Hall-Heroult process for purifying aluminium.
The first electric carbon arc lamp was invented by Sir Humphrey Davy of England in 1801. However it wasn’t until 1880 that the discovery of the longer lasting electric lamp really changed the way we live.
A spectacular practical demonstration to show the differences between elements, mixtures and compounds
By Helen Harden and Neil Goalby
Datblygu dealltwriaeth y dysgwyr o ddellt ïonig drwy gymharu cynrychioliadau 2D a 3D
Defnyddiwch yr awgrymiadau sydd wedi’u sgaffaldio i helpu’r dysgwyr i ysgrifennu am swm y sylwedd mewn molau
By Sarah Binns
Rhoi cydbwyso hafaliadau cemegol mewn cyd-destun gyda chwestiynau am danwydd
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