Making cars - C2d - Flashcards in GCSE Science

Created by: iram_f
Created on: 25-11-14 19:54

What is the equation for rusting?

Iron + water + oxygen = hydrated iron (III) oxide

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What are the benefits and disadvantages of steel?

Steel is very cheap, giving these cars a lower price, and does not corrode as easily as pure iron, yet still rusts over time. It has a shorter lifetime but is hard and strong, therefore it is more likely to survive in a crash.

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Why does aluminium not corrode as much as we would expect?

Aluminium reacts with oxygen to produce a protective aluminium oxide layer over the metal, thus preventing oxygen or water from reaching the metal surface and reacting more.

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What are the advantages of recycling metals?

The recycling of metals means that less metal ores need to be mined, saving natural resources and reduces environmental damage. This also saves money and energy that would otherwise be used to extract and purify these metals.

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What are the benefits and disadvantages of aluminium?

Aluminium is lightweight, giving it a better fuel economy. Due to the protective aluminium oxide layer it produces it has a longer lifetime. However it is expensive to extract aluminium, meaning that cars with an Al body will be more expensive.

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Other cards in this set

Card 2

Front

What are the benefits and disadvantages of steel?

Back

Card 3

Front

Why does aluminium not corrode as much as we would expect?

Back

Card 4

Front

What are the advantages of recycling metals?

Back

Card 5

Front

What are the benefits and disadvantages of aluminium?

Back

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Making cars - C2d