Name the following compound

${\mathrm{CrCl}}_3$

Name the following compound

${\mathrm{NaHSO}}_4$

Name the following compound:

${\mathrm{AuCl}}_3$

Name the following compound

${\mathrm{Fe}}_2{\left({\mathrm{SO}}_4\right)}_3$

Name the following compound

${\left({\mathrm{NH}}_4\right)}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$

Name the following compound

${\mathrm{Ag}}_2\mathrm{S}$

Name the following compound

${\mathrm{Mg}}_3{\mathrm{N}}_2$

Name the following compound

${\mathrm{NaHCO}}_3$

Balance the following equations:

${\mathrm{K}}_2\mathrm{O}+{\mathrm{H}}_2\mathrm{O}\to \mathrm{KOH}$