Answer
The table is attached below.
Work Step by Step
In order to fill this table, we have to balance charges on anions and cations.
For example:
$Na^{+}$ and $NO_{3}^ {-}$, The charges are balanced so the chemical formula will be $NaNO_{3}$
For $Ca^{+2}$ and $NO_{3}^ {-}$, We need two ions of $NO_{3}^ {-}$, thus the chemical formula will be $Ca(NO_{3})_{2}$
For $Fe^{2+}$ and $AsO_{4}^{3-}$, We need three ions of $Fe^{2+}$ ( $3×+2=+6$ ) and two ions of $AsO_{4}^{3-}$ ($2×−3=−6$ ). Thus the chemical formula will be $Fe_{3}(AsO_{4})_{2}$.
The rest of the table is filled in this way.
