S Block Elements

$$ \begin{array}{lll} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaCO}_3 & \mathrm{NaCl} & \mathrm{KCl} \end{array} $$

$$ \begin{array}{lcl} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaO} & \mathrm{NaCl}+\mathrm{CO}_2 & \mathrm{NaCl} \end{array} $$

$$ \begin{array}{lll} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaCO}_3 & \mathrm{NaCl} & \mathrm{HCl} \end{array} $$

$$ \begin{array}{ccc} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaO} & \mathrm{NaCl}+\mathrm{CO}_2 & \mathrm{KCI} \end{array} $$