OCR GCSE Chemistry A · J248
Specification C6.1p · Paper 2 (Foundation), Paper 4 (Higher)
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GCSE Chemistry · key term
A thin, often discoloured surface layer formed when a metal reacts with its surroundings.
Used by OCR
Specification C6.1p · Paper 2 (Foundation), Paper 4 (Higher)
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A gradual loss of the shiny appearance of a metal surface because the metal has reacted with substances in the air.
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