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Sagot :
Certainly! Let's match each compound of Chromium with its correct chemical formula:
1. Chromium(I) oxide: Chromium in the +1 oxidation state.
- To neutralize the charges, we need two chromium ions (+1 each) to balance one oxygen ion (-2).
- Chemical formula: Cr₂O
2. Chromium(II) oxide: Chromium in the +2 oxidation state.
- To neutralize the charges, we need one chromium ion (+2) to balance one oxygen ion (-2).
- Chemical formula: CrO
3. Chromium(IV) oxide: Chromium in the +4 oxidation state.
- To neutralize the charges, we need one chromium ion (+4) to balance two oxygen ions (-2 each).
- Chemical formula: CrO₂
4. Chromium(VI) oxide: Chromium in the +6 oxidation state.
- To neutralize the charges, we need one chromium ion (+6) to balance three oxygen ions (-2 each).
- Chemical formula: CrO₃
So, the correct matches are:
- Chromium(I) oxide ⟶ Cr₂O
- Chromium(II) oxide ⟶ CrO
- Chromium(IV) oxide ⟶ CrO₂
- Chromium(VI) oxide ⟶ CrO₃
1. Chromium(I) oxide: Chromium in the +1 oxidation state.
- To neutralize the charges, we need two chromium ions (+1 each) to balance one oxygen ion (-2).
- Chemical formula: Cr₂O
2. Chromium(II) oxide: Chromium in the +2 oxidation state.
- To neutralize the charges, we need one chromium ion (+2) to balance one oxygen ion (-2).
- Chemical formula: CrO
3. Chromium(IV) oxide: Chromium in the +4 oxidation state.
- To neutralize the charges, we need one chromium ion (+4) to balance two oxygen ions (-2 each).
- Chemical formula: CrO₂
4. Chromium(VI) oxide: Chromium in the +6 oxidation state.
- To neutralize the charges, we need one chromium ion (+6) to balance three oxygen ions (-2 each).
- Chemical formula: CrO₃
So, the correct matches are:
- Chromium(I) oxide ⟶ Cr₂O
- Chromium(II) oxide ⟶ CrO
- Chromium(IV) oxide ⟶ CrO₂
- Chromium(VI) oxide ⟶ CrO₃
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