Question

fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table:
some ionic compounds
cation anion empirical formula name of compound
mn³⁺ cl⁻
mn²⁺ cl⁻
rb⁺ cl⁻
ba²⁺ cl⁻

Explanation:

Step1: Determine formula for $Mn^{3 +}$ and $Cl^{-}$

The charges must balance. Three $Cl^{-}$ are needed for one $Mn^{3+}$. So the empirical formula is $MnCl_{3}$, and the name is Manganese(III) chloride.

Step2: Determine formula for $Mn^{2+}$ and $Cl^{-}$

Two $Cl^{-}$ are needed for one $Mn^{2+}$. The empirical formula is $MnCl_{2}$, and the name is Manganese(II) chloride.

Step3: Determine formula for $Rb^{+}$ and $Cl^{-}$

One $Rb^{+}$ combines with one $Cl^{-}$. The empirical formula is $RbCl$, and the name is Rubidium chloride.

Step4: Determine formula for $Ba^{2+}$ and $Cl^{-}$

Two $Cl^{-}$ are needed for one $Ba^{2+}$. The empirical formula is $BaCl_{2}$, and the name is Barium chloride.

Answer:

cation	anion	empirical formula	name of compound
$Mn^{2+}$	$Cl^{-}$	$MnCl_{2}$	Manganese(II) chloride
$Rb^{+}$	$Cl^{-}$	$RbCl$	Rubidium chloride
$Ba^{2+}$	$Cl^{-}$	$BaCl_{2}$	Barium chloride