Question

5 What happens when copper
vessel is exposed to moist air
for a long time? Explain
with the help of a chemical
equation?

Answer 1

$\huge \pink{answer}$

when copper vessel is exposed to moist air for a long time ,it acquires a Dull green coating . the green material is a mixture of copper hydroxide and copper carbonate . the following chemical reactions takes place .

2Cu + H2O + CO2 + O2 → Cu (OH)2