Write a balanced half reaction for the oxidation of water

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Oxidation–reduction (redox) reactions

It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. During the electrolysis of a solution of copper sulfate, copper is reduced to form a solid on the inert electrode while water is oxidised at the anode. What is the half equation for water? I have omitted the phase descriptors for clarity. In any chemical reaction, we can add or subtract spectators as we see write a balanced half reaction for the oxidation of water this is akin to mathematical equations where we can add or substract expressions as we see fit as long as we do the same to both sides.

If this were now a mathematical equation, I could combine or divide parts as I see fit. In a chemical reaction, we need to cheap analysis essay writing website for school a bit more careful.

Your Answer

But as long as our focus is not on proton transfers, we can combine anything basic enough with acidic protons. Now, we notice that we again have spectators. Fo water molecules turn up both on the reactant and on the product side an additional two are unique to the reactant side.

I will also perform some rearranging. Now which one should you use?

Balancing Redox Equations: Half-Reaction Method

Notice that one reaction consumes hydroxide while the other produces protons formally! The consumption of hydroxide is equivalent to the production of protons.

write a balanced half reaction for the oxidation of water

In short, choose the one with the same charged particle as is used in the other half-reaction to make your life simpler. You are looking for a reaction where wite is oxidized, i. Which of your proposed reactions shows water being oxidized and not reduced?

write a balanced half reaction for the oxidation of water

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Identifying Redox Reactions

Ask Question. Asked 4 years, 10 months ago. Active 4 years, 5 months ago. Viewed 5k times. And what is the standard reduction potential in an electrolytic cell?

write a balanced half reaction for the oxidation of water

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