Corrosion in metals
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Corrosion | when a metal is attacked by air, water, or other substances in its surroundings
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| The more reactive the metal is… | the more readily it corrodes
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| What does rusting involve? | Air and water
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| How to prevent rusting | coat metal with something to keep out air and moisture
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| Protection from rusting | paint, grease, plastic, another metal (zinc=galvanization), sacrificial protection
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| Does Aluminium corrode? | It starts to but soon stops, due to the even coat of aluminium oxide which acts as a seal preventing air and moisture to further corrode the metal
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