Question

a new flower vase made of copper loses it luster and has a green deposit what is the necessary reaction taking place

Answer 1

Answer:

it is the development of fungi on their

Answer 2

Answer:

When a copper vessel is exposed to moist air for a long time it develops a green layer on its surface. Copper corrodes by oxidation in which it reacts with oxygen in the air to form copper oxide.

Copper oxide then combines with carbon dioxide to make copper carbonate, which gives it a green colour. This process is called corrosion of copper.