Write the chemical name of the following compound:

${\mathrm{K}}_2{\mathrm{MnO}}_4$

Write the chemical name of the following compound:

${\mathrm{Mn}}_3{\left({\mathrm{BO}}_3\right)}_2$

Write the chemical name of the following compound:

$\mathrm{Mg}{\left({\mathrm{HCO}}_3\right)}_2$

Write the chemical name of the following compound:

${\mathrm{Na}}_4\mathrm{Fe}{\left(\mathrm{CN}\right)}_6$

Write the chemical name of the following compound:

$\mathrm{Ba}{\left({\mathrm{CIO}}_3\right)}_2$

Write the chemical name of the following compound:

${\mathrm{Ag}}_2{\mathrm{SO}}_3$

Write the chemical name of the following compound:

${\left({\mathrm{CH}}_3\mathrm{COO}\right)}_2\mathrm{Pb}$

Write the chemical name of the following compound:

${\mathrm{Na}}_2{\mathrm{SiO}}_3$

Write the formula of the following compound:

Barium sulphate