please fill in the blankssss Write the charge$-$balance equations for a solution that is

a$.0\mathrm{.}46M$ in $HF.$

$=$

$+$

b$.0\mathrm{.}12M$ in $C{H}_{3}N{H}_2.$

$+,=$

c$.$ saturated with $A{g}_{2}S.$

$+$

$=$

$+$