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Finding Oxidation Numbers

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Uploaded by on Jun 17, 2010

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Uploader Comments (AndrewTeacherNSCC)

  • Thank you, but I have a question, what if you have a compound like CaSO4?

  • @therubixman Sorry this took so long. For a compound with a polyatomic ion in it you can use your table to see that SO4 has an overall 2- charge. From there you can work out S from O having an oxidation number of -2. -2 x 4 Oxygens = -8 and the overall polyatomic ion is 2- so S must be +6. With the O and the S done Ca must be +2 since CaSO4 has no overall charge

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  • Hey man thanks, I couldn't understand this until I was able to slow it down a bit. Really helped.

  • Thank you very much! I´ve searched and watched so many videos. Your expöanation was simple and understandable(without this I wouldn´t have understood this). Thanks!

  • very well explained thanks

  • This was the best video explanation I've encountered!!! I've watched so many and this one was the best one that left me understanding how to find oxidation numbers!!

  • That is by far the best explanation I have seen on solving oxidation numbers! Thanks!

  • Of all the tutorials i've watched, this explained it to me the best. Thanks !

  • it wudve been much better if u used the familiar method of solving an x equation! ur way is a bit complicating :\

  • Thank you so much for the help .

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