Question

check the box before each formula that represents a ligand that is likely to form a complex with a transition metal. if there are none, please check the box below the table. ☐ kcl ☐ ba ☐ h₂o ☐ feo ☐ none of the above

Explanation:

To determine which formula represents a ligand likely to form a complex with a transition metal, we analyze each option:

• \( \text{KCl} \): This is an ionic compound (potassium chloride) and does not act as a ligand. It dissociates into \( \text{K}^+ \) and \( \text{Cl}^- \) ions in solution, and \( \text{Cl}^- \) can be a ligand, but \( \text{KCl} \) as a compound is not a ligand.
• \( \text{Ba} \): This is a metal (barium) and not a ligand. Ligands are typically molecules or ions that can donate a pair of electrons to a metal center.
• \( \text{H}_2\text{O} \): Water is a common ligand. The oxygen atom in \( \text{H}_2\text{O} \) has lone pairs of electrons that can be donated to a transition metal ion, forming a coordination complex (e.g., \( [\text{Cu}(\text{H}_2\text{O})_6]^{2+} \)).
• \( \text{FeO} \): Iron(II) oxide is an ionic compound (a metal oxide) and not a ligand. It is a solid compound and does not function as a ligand to form a complex with a transition metal.

So, the ligand likely to form a complex with a transition metal is \( \text{H}_2\text{O} \).

Answer:

The box before \( \boldsymbol{\text{H}_2\text{O}} \) should be checked.