Question

who am i when I am reacts with surface of copper vessel copper loses its luster​

Answer 1

Answer:

the answer is carbon dioxide CO2

Explanation:

hope it helps you

Answer 2

Answer:

Copper reacts with moist carbon-dioxide in air to form copper carbonate and as a result,copper vessels lose their shiny brown surface forming a green layer of copper.Tarnished copper vessels are cleaned with lemon and tamarind juice to give the surface of the copper vessel it's characteristics lustre.