write the name of a metal that reacts with o2 at room temperature to form a thin layer of oxide on its surface
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Sorry it was magnesium
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Aluminium.
Explanation:
Aluminium, at room temperature reacts with Oxygen and forms a protective layer of Aluminium Oxide (Al2O3) at its surface and makes it a 'Passive metal'.
Passive metals are less readily reactive due to these layers formed on their surfaces, the advantage is that by such layers, the process of corrosion is evaded.
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