Questions: What is the chemical formula for Fe2O3?
Transcript text: For Roman Numerals, use: (I) (II) (III) (IV) (V) (VI) (VII) etc.
What is the chemical formula for $\mathrm{Fe}_{2} \mathrm{O}_{3}$ ?
Solution
Solution Steps
Step 1: Identify the elements
The chemical formula \(\mathrm{Fe}_{2} \mathrm{O}_{3}\) consists of iron (Fe) and oxygen (O).
Step 2: Determine the oxidation states
Iron (Fe) can have multiple oxidation states. In \(\mathrm{Fe}_{2} \mathrm{O}_{3}\), each oxygen (O) has an oxidation state of -2.
Step 3: Calculate the total oxidation state for oxygen
Since there are three oxygen atoms, the total oxidation state for oxygen is \(3 \times -2 = -6\).
Step 4: Balance the oxidation states
To balance the -6 from oxygen, the total oxidation state for iron must be +6. Since there are two iron atoms, each iron atom must have an oxidation state of \(+3\).
Step 5: Write the chemical name
The chemical name for \(\mathrm{Fe}_{2} \mathrm{O}_{3}\) is iron (III) oxide, indicating that iron is in the +3 oxidation state.
Final Answer
The chemical name for \(\mathrm{Fe}_{2} \mathrm{O}_{3}\) is iron (III) oxide.