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# Redox q help watch

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1. MnO4- +V2+ +H+ -- VO2+ + H2O +Mn2+
Balance using oxidation numbers?
Thanks
2. Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

Just quoting in Danny Dorito so she can move the thread if needed
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(Original post by Danny Dorito)
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3. (Original post by helpme:))
MnO4- +V2+ +H+ -- VO2+ + H2O +Mn2+
Balance using oxidation numbers?
Thanks
It's pretty simple once you know the rules.

First you balance all the elements other than H or O.... so in your case, you need to make sure that there are the same number of Mn on each side and same number of V on each side. Mn is already equal so you need to put a 2 in front of VO2 to have two V atoms on each side.

Then you balance the Oxygen (O) by adding the necessary number of H20 on whichever side to balance it.

Then you balance H with H+ ions

Then you balance to overall charge on each side, so you need to insert e- electrons to either side needs it.

Try it out and post back with your working out
4. (Original post by James A)
It's pretty simple once you know the rules.

First you balance all the elements other than H or O.... so in your case, you need to make sure that there are the same number of Mn on each side and same number of V on each side. Mn is already equal so you need to put a 2 in front of VO2 to have two V atoms on each side.

Then you balance the Oxygen (O) by adding the necessary number of H20 on whichever side to balance it.

Then you balance H with H+ ions

Then you balance to overall charge on each side, so you need to insert e- electrons to either side needs it.

Try it out and post back with your working out
Hi, i understood it just today but thanks anyway.

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