sruthisuresh sruthisuresh

11-01-2020
Chemistry

contestada

give reasons 1)copper utensils and sheets become blackish after some days

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theofficialkoolplug theofficialkoolplug

11-01-2020

Copper reacts with the oxygen in the air and this is known as oxidation and is a chemical change . The copper reacts with oxygen and gets oxidised to form a blackish coating on the sheet. Cu+O2->CuO..
This is a combination reaction. #answerwithquality #BAL

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