why the surface of some metal acquired an appearance when exposed to Air for a long time
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The reason is because they react with gases present in air such as 'CARBON-DIOXIDE' & 'OXYGEN' to form 'METAL OXIDE'.
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Hope this helps !
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hiii
the surface of some metal acquired a bland appearance when exposed to Air for a long time because of the chemical process or reaction between the gases and the metal in the atmosphere.
for example - aluminium which tends to form aluminium oxide when it is exposed to air
hope this helps!
the surface of some metal acquired a bland appearance when exposed to Air for a long time because of the chemical process or reaction between the gases and the metal in the atmosphere.
for example - aluminium which tends to form aluminium oxide when it is exposed to air
hope this helps!
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