Learning objective
Explain why aluminium resists further corrosion because of its oxide coating. (Chemistry only)
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At a glance
5
Flashcards
7
Questions
Topic
Using materials
Subtopic
Corrosion and its prevention
Study support
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Short explanation
In the subtopic Corrosion and its prevention, this learning objective focuses on explain why aluminium resists further corrosion because of its oxide coating. (Chemistry only). Within Using materials, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include chemistry only, corrosion, and coating. aluminium oxide coating means a protective layer formed on the surface of aluminium that prevents further corrosion. Avoid students often think that aluminium does not corrode at all; instead explain that aluminium does corrode, but the oxide coating that forms protects it from further corrosion. For exam answers, remember that aluminium resists corrosion due to the formation of a protective oxide layer when exposed to air.
Key concepts
Why it matters
This objective helps connect Corrosion and its prevention to exam-style questions, flashcards, and revision notes for Using materials.
Common mistakes
1 linked- Aluminium Corrosion Resistance: Explain that aluminium does corrode, but the oxide coating that forms protects it from further corrosion.
Revision tools
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Flashcards5 linked cards
Flashcard 1 of 5
Practice Questions7 linked questions
Question 1 of 7
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Define corrosion as the destruction of materials by chemical reactions with substances in the environment. (Chemistry only)
Corrosion and its prevention
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Corrosion and its prevention
- Explain that both air and water are needed for iron to rust. (Chemistry only)
Corrosion and its prevention
- Describe experiments that show both air and water are necessary for rusting. (Chemistry only; WS 2.2, 7, 3.5)
Corrosion and its prevention
- Interpret results from rusting experiments. (Chemistry only)
Corrosion and its prevention
