Question

A vessel made of element X is exposed to moist air for a long time a green coating of compound y is formed on it. what is X and y. write the reaction associated with the following questions​

Answer 1

Answer:

X is a metal named copper..

Y is basic copper oxide..

REACTION..

When copper reacts with oxygen, then it produces copper oxide. The chemical equation of this reaction is 4Cu + O2 = 2Cu2O, and forms Copper Oxide.

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Answer 2

Answer:

X - Copper

Y - Copper Hydroxide , Copper Carbonate

Explanation:

When Copper is kept in moist air for long, then a green layer is formed on it. This is a mixture of Copper Hydroxide and Copper Carbonate...

REACTION :

Cu + H2O + CO2 + O2 ----- Cu (OH)2 + CuCO3

HERE H2O + CO2 + O2 is moist air.

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