Type the correct answer in each box. Chromium(III) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. The oxidation state of chromium in this compound is \( \square \), and the chemical formula of the compound is

The oxidation state of chromium in chromium(III) sulfate is \( \boxed{+3} \), and the chemical formula of the compound is \( \boxed{\text{Cr}_2(\text{SO}_4)_3} \). **Explanation:** 1. **Oxidation State of Chromium:** - The name "chromium(III) sulfate" indicates that chromium has an oxidation state of +3. 2. **Chemical Formula:** - **Sulfate Ion:** The sulfate ion has a charge of \(-2\) (\(\text{SO}_4^{2-}\)). - **Balancing Charges:** To balance the total positive and negative charges, two chromium ions (\(2 \times +3 = +6\)) are needed to balance three sulfate ions (\(3 \times -2 = -6\)). - **Resulting Formula:** This gives the chemical formula \(\text{Cr}_2(\text{SO}_4)_3\). So, the completed answers are: - Oxidation state of chromium: \( +3 \) - Chemical formula: \( \text{Cr}_2(\text{SO}_4)_3 \)