How to Determine if a Reaction is a Redox Reaction?

Numbnut247 · May 10, 2006

Hey guys, how can I tell whether a reaction is a redox reaction?

For example:

2H2O --> 2H2 + O2

GCT · May 10, 2006

You've got to look at the respective elements and whether there are changes in the oxidation states; oxidation and reduction, electron transfer.

Curious3141 · May 11, 2006

Numbnut247 said:

Hey guys, how can I tell whether a reaction is a redox reaction?

For example:

2H2O --> 2H2 + O2

On the left hand side, what are the respective oxidation numbers for hydrogen and oxygen (in water)?

On the right hand side, what are the respective oxidation numbers for H and O? (hint : constituent atoms of elemental molecules have zero oxidation number).

Is there any change in the oxidation number from left to right hand side? So is it a redox reaction?

How to Determine if a Reaction is a Redox Reaction?

Discussion

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