An s-block element carbonate is treated with excess hydrochloric acid. A sample with a mass of 0.833 g of the carbonate produces $200\,\text{cm}^3$ of gas, collected under room conditions. Which metal carbonate is it?
- A$\text{Na}_2\text{CO}_3$
- B$\text{K}_2\text{CO}_3$
- C$\text{MgCO}_3$
- D$\text{CaCO}_3$