Question

What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write a chemical equation of the reaction involved.

Answer 1

Hint :Metal carbonates are produced when metals react with carbonic acid. For example, sodium carbonate is used to make washing powder, whereas sodium bicarbonate is used to make baking soda. Metal carbonates are a kind of base that react with an acid to generate salt, water, and carbon dioxide.

Complete Step By Step Answer:
A salt, carbon dioxide gas, and water are generated when an acid interacts with a metal carbonate. When dilute hydrochloric acid interacts with sodium carbonate, sodium chloride, carbon dioxide gas, and water are produced as a result.
 $ \;\;N{a_2}C{O_3}(s) + 2HCl(aq) \to 2NaCl(aq) + C{O_{2}}(g) + {H_2}O(l) $
The simplest oxocarbon anion is the carbonate ion. On heating, metal carbonates breakdown, releasing carbon dioxide from the long-term carbon cycle into the short-term carbon cycle and leaving behind a metal oxide. Carbonate, bicarbonate, carbon dioxide, and carbonic acid coexist in aqueous solution in a dynamic equilibrium. The carbonate ion predominates in extremely basic circumstances, whereas the bicarbonate ion predominates in mildly basic ones.
In more acidic circumstances, aqueous carbon dioxide, (aq), is the most common form, which is in equilibrium with carbonic acid when combined with water, water - the equilibrium is significantly skewed towards carbon dioxide. As a result, sodium carbonate is basic, sodium bicarbonate is mildly basic, and carbon dioxide is a weak acid in its own right. Carbonated water is made by dissolving CARBON DIOXIDE under pressure in water. When the partial pressure of CARBON DIOXIDE is reduced, like when a can of soda is opened, the equilibrium shifts for each type of carbonate until the concentration of CARBON DIOXIDE in the solution equals the solubility of CARBON DIOXIDE at that temperature and pressure.

Note :
A carbonate is a functional group inside a larger molecule that comprises a carbon atom linked to three oxygen atoms, one of which is doubly bonded, in organic chemistry. Organic Carbonates or carbonate esters are other names for these molecules. Dimethyl carbonate, the cyclic molecules ethylene carbonate and propylene carbonate, and the phosgene replacement, triphosgene, are all important organic carbonates.