Question

How does calcium carbonate react with dioxygen gas?

Answer 1

To the best of my knowledge calcium carbonate does not react with oxygen gas.

Explanation:

Calcium hydroxide is neutralized by the action of carbon dioxide:

`Ca(OH)_2(aq) +CO_2(aq) rarr CaCO_3(s)darr +H_2O(l)`

But calcium carbonate is fairly inert.....