Hydroxide (OH-)
* Definition: A negatively charged polyatomic ion consisting of one oxygen atom and one hydrogen atom.
* Properties:
* Strong base
* Found in many inorganic and organic compounds
* Responsible for the alkalinity of solutions
* Examples: Sodium hydroxide (NaOH), potassium hydroxide (KOH)
Peroxide (O2^2-)
* Definition: A negatively charged polyatomic ion consisting of two oxygen atoms linked together by a single bond.
* Properties:
* Powerful oxidizing agent
* Can decompose into oxygen and water
* Used as a bleaching agent and disinfectant
* Examples: Hydrogen peroxide (H2O2), sodium peroxide (Na2O2)
Key Differences:
* Composition: Hydroxide has one oxygen atom and one hydrogen atom, while peroxide has two oxygen atoms.
* Structure: Hydroxide is linear, while peroxide is bent.
* Chemical properties: Hydroxide is a strong base, while peroxide is a powerful oxidizing agent.
In summary, hydroxide and peroxide are distinct chemical species with different compositions, structures, and properties. They should not be considered the same.