Surface of some metals lose their brightness when kept in air for a long time
Aayushgupta11:
that is because the IRON OXYGEN AND MOISTURE create a reddish brown substance called rust on the iron article and magnesium ribbon
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some metals like magnesium are reactive to oxygen in open air
so the reaction will be like
2Mg +O2= 2MgO
these oxides of metals are non lustrous so they lose their brightness.
Hope This Helps.
so the reaction will be like
2Mg +O2= 2MgO
these oxides of metals are non lustrous so they lose their brightness.
Hope This Helps.
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