OCR C2 Revision Flashcards: Amy and Lacey - Making Cars 0.0 / 5 ? ScienceChemistryGCSEOCR Created by: xamyxkellyxCreated on: 08-06-16 21:47 True or false: Only iron and steel rust. True - other metals corrode 1 of 10 What accelerates rusting? Acid rain and salt water 2 of 10 What is the word equation for rusting? Iron+Oxygen -> Water+Iron (III) Oxide 3 of 10 Does aluminium corrode? Why? No, it has a protective layer of aluminium oxide which does not flake off like rust. 4 of 10 True or false: Different metals corrode at the same rate. False- they corrode at different rates. 5 of 10 What is an alloy? A mixture of different elements containing at least one metal. 6 of 10 Which is harder: steel or iron? Steel is harder and stronger as well as being less likely to corrode than iron. 7 of 10 What materials can be used for building cars? Aluminium and Steel 8 of 10 What are the advantages to a) Aluminium b) Steel ? Aluminium is lighter and more resistant to corrosion. Steel is cheaper and stronger. 9 of 10 What are the advantages of building cars from aluminium? They are lighter so fuel economy is improved. Also, aluminium corrodes slowly and so lasts longer. 10 of 10
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