What is the oxidation state of oxygen in the products of this reaction?

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In summary, the majority of oxygen is reduced in the mitochondria of cells during cellular respiration. This process involves a series of reactions in the electron transport chain, where oxygen accepts electrons and combines with protons to form water. However, oxygen can also be reduced in other cellular processes such as photosynthesis. Oxygen is reduced in the mitochondria because it is necessary for the production of ATP, the primary energy source for cellular processes. After being reduced, oxygen combines with protons to form water and is released as a waste product from the cell.
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2C2H2 + 5O2 -> 4CO2 + 2H2O


Oxidation: 2C2- -> 4C4+ + 12e-

I am confused to where the reduction products are becuse the oxygens are part of the carbon dioxide and the water. Could somone please help me?
 
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What is oxidation number of oxygen before and after the reaction?

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1. Where is the majority of oxygen reduced?

The majority of oxygen is reduced in the mitochondria of cells during cellular respiration.

2. How is oxygen reduced in the mitochondria?

Oxygen is reduced through a series of reactions in the electron transport chain, where it accepts electrons and combines with protons to form water.

3. Is oxygen only reduced in the mitochondria?

No, oxygen can also be reduced in other cellular processes such as photosynthesis, where it serves as the final electron acceptor in the light reactions.

4. Why is oxygen reduced in the mitochondria?

Oxygen is reduced in the mitochondria because it is necessary for the production of ATP, the primary energy source for cellular processes.

5. What happens to the oxygen after it is reduced?

After oxygen is reduced, it combines with protons to form water and is then released as a waste product from the cell.

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