Question

why does copper loose shine after use

Answer 1

This is because it react with contact of oxygen and water in Air and makes it corrosive

Answer 2

.｡.:*✧hєчαα mαtє !❤✧*:.｡.

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A copper vessel reacts with oxygen present in air when exposed to it , they forms copper oxide which , in turn , is a black coating over the vessel and makes the vessel to lose its shine .

2Cu + O2 = 2CuO

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hᎾᏢᎬ u ᏞᎥᏦᎬ ᎥᏆ !❤┈━═☆