Oxidation state of oxygen in peroxides

In summary, the oxidation state of oxygen in peroxides is typically -1, which differs from most compounds where oxygen has an oxidation state of -2. This is due to the bonding of oxygen atoms to each other in peroxides. The oxidation state of oxygen in peroxides can change depending on the reaction, and some common examples of peroxides include hydrogen peroxide, sodium peroxide, and calcium peroxide. The oxidation state of oxygen in peroxides is important for determining the reactivity and stability of the compound in various chemical reactions.
  • #1
Janiceleong26
276
4

Homework Statement


The oxidation state of oxygen in all compounds is -2, except in peroxides such as H2O2, Na2O2 and BaO2 where it is -1. If it is -1, then why can't we write H2O2 and Na2O2 as HO and NaO respectively?
 
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  • #2
Basically because they are different molecules. The O-O presence is essential.
 
  • #3
BvU said:
Basically because they are different molecules. The O-O presence is essential.
I see thanks
 

Related to Oxidation state of oxygen in peroxides

1. What is the oxidation state of oxygen in peroxides?

The oxidation state of oxygen in peroxides is typically -1.

2. How does the oxidation state of oxygen in peroxides differ from other compounds?

In most compounds, oxygen has an oxidation state of -2. However, in peroxides, the oxygen atoms are bonded to each other, resulting in an overall oxidation state of -1 for each oxygen atom.

3. Can the oxidation state of oxygen in peroxides change?

Yes, the oxidation state of oxygen in peroxides can change depending on the reaction. For example, in the decomposition of hydrogen peroxide, the oxygen atoms have an oxidation state of -1, but in the formation of water and oxygen gas, the oxygen atoms have an oxidation state of -2.

4. What are some common examples of peroxides?

Some common examples of peroxides include hydrogen peroxide (H2O2), sodium peroxide (Na2O2), and calcium peroxide (CaO2).

5. Why is the oxidation state of oxygen in peroxides important?

The oxidation state of oxygen in peroxides is important because it helps determine the reactivity and stability of the compound. Peroxides are often used as oxidizing agents in various chemical reactions, and their oxidation state plays a crucial role in these reactions.

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