Question

in chemistry, there are specific rules for writing the formulas of ionic compounds having a given name. one or more of these formulas are breaking the rules. select all the rule breakers. tap to select or deselect an option. select all the rule breakers. titanium(iv) chloride iron(ii) oxide cobalt(ii) chloride ticl₅ fe₂o cocl₂

Explanation:

Step1: Determine charges of ions in titanium(IV) chloride

Titanium(IV) has a charge of +4 ($Ti^{4 +}$), and chloride ion has a charge of - 1 ($Cl^{-}$). To balance the charges, the formula should be $TiCl_{4}$, not $TiCl_{5}$. So $TiCl_{5}$ is a rule - breaker.

Step2: Determine charges of ions in iron(II) oxide

Iron(II) has a charge of +2 ($Fe^{2+}$), and oxide ion has a charge of - 2 ($O^{2 -}$). The correct formula should be $FeO$, not $Fe_{2}O$. So $Fe_{2}O$ is a rule - breaker.

Step3: Determine charges of ions in cobalt(II) chloride

Cobalt(II) has a charge of +2 ($Co^{2+}$), and chloride ion has a charge of - 1 ($Cl^{-}$). The formula $CoCl_{2}$ is correct as the charges are balanced.

Answer:

$TiCl_{5}$, $Fe_{2}O$