Use the table data to describe how the solubility of the Group 2 carbonates changes down the group.
Write an equation for the equilibrium involved in the solubility product of MgCO$_3$. State symbols are required.
With reference to your equation in (i), suggest the observation when a few cm$^3$ of concentrated Na$_2$CO$_3$(aq) are added to a saturated solution of MgCO$_3$. Explain your answer.
Use the table data to calculate the solubility of MgCO$_3$ in water at 298 K, in g dm$^{-3}$.
Explain why $\text{Magnesium nitrate}$ decomposes at a lower temperature than $\text{barium nitrate}$.
A sample of barium nitrate was heated strongly until no further change occurred. A white solid was formed. Write an equation for the action of heat on barium nitrate.
When water was added to the white solid produced in (d)(ii), an alkaline solution was produced. Adding sulfuric acid to this solution produced a white precipitate. Write equations to explain these observations.