fill in the name and empirical formula of each ionic compound that could be formed from the ions in this…

Explanation:

Step1: Recall ion - naming rules

Cations are named as the element name followed by the charge in Roman numerals if the metal has multiple oxidation states. Anions are named with an -ate or -ite suffix for polyatomic anions or -ide for simple anions.

Step2: Name the cations

$Fe^{3 + }$ is iron(III) ion, $Pb^{4+}$ is lead(IV) ion, $Ca^{2+}$ is calcium ion.

Step3: Name the anions

$CrO_{4}^{2 - }$ is chromate ion, $SO_{4}^{2 - }$ is sulfate ion, $BrO_{3}^{-}$ is bromate ion.

Step4: Determine empirical formulas

For a compound formed between a cation $M^{m+}$ and an anion $A^{n - }$, the empirical formula is $M_{n}A_{m}$ (the least - common - multiple method to balance the charges).

• For $Fe^{3+}$ and $CrO_{4}^{2 - }$, the empirical formula is $Fe_{2}(CrO_{4})_{3}$ and the name is iron(III) chromate.
• For $Fe^{3+}$ and $SO_{4}^{2 - }$, the empirical formula is $Fe_{2}(SO_{4})_{3}$ and the name is iron(III) sulfate.
• For $Fe^{3+}$ and $BrO_{3}^{-}$, the empirical formula is $Fe(BrO_{3})_{3}$ and the name is iron(III) bromate.
• For $Pb^{4+}$ and $CrO_{4}^{2 - }$, the empirical formula is $Pb(CrO_{4})_{2}$ and the name is lead(IV) chromate.
• For $Pb^{4+}$ and $SO_{4}^{2 - }$, the empirical formula is $Pb(SO_{4})_{2}$ and the name is lead(IV) sulfate.
• For $Pb^{4+}$ and $BrO_{3}^{-}$, the empirical formula is $Pb(BrO_{3})_{4}$ and the name is lead(IV) bromate.
• For $Ca^{2+}$ and $CrO_{4}^{2 - }$, the empirical formula is $CaCrO_{4}$ and the name is calcium chromate.
• For $Ca^{2+}$ and $SO_{4}^{2 - }$, the empirical formula is $CaSO_{4}$ and the name is calcium sulfate.
• For $Ca^{2+}$ and $BrO_{3}^{-}$, the empirical formula is $Ca(BrO_{3})_{2}$ and the name is calcium bromate.

Answer:

Cation	Anion	Empirical Formula	Name of Compound
$Fe^{3 + }$	$CrO_{4}^{2 - }$	$Fe_{2}(CrO_{4})_{3}$	iron(III) chromate
$Fe^{3 + }$	$SO_{4}^{2 - }$	$Fe_{2}(SO_{4})_{3}$	iron(III) sulfate
$Fe^{3 + }$	$BrO_{3}^{-}$	$Fe(BrO_{3})_{3}$	iron(III) bromate
$Pb^{4+}$	$CrO_{4}^{2 - }$	$Pb(CrO_{4})_{2}$	lead(IV) chromate
$Pb^{4+}$	$SO_{4}^{2 - }$	$Pb(SO_{4})_{2}$	lead(IV) sulfate
$Pb^{4+}$	$BrO_{3}^{-}$	$Pb(BrO_{3})_{4}$	lead(IV) bromate
$Ca^{2+}$	$CrO_{4}^{2 - }$	$CaCrO_{4}$	calcium chromate
$Ca^{2+}$	$SO_{4}^{2 - }$	$CaSO_{4}$	calcium sulfate
$Ca^{2+}$	$BrO_{3}^{-}$	$Ca(BrO_{3})_{2}$	calcium bromate