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Post by Chance Harebell on Apr 19, 2006 11:28:56 GMT -5
Help with science may be found here.
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Post by Sesshoumaru on May 16, 2006 15:13:22 GMT -5
I definitely need some science help...my teacher is pulling some serious crap out on me, and he's a jerk who won't explain himself...it has something to do with redox reactions.
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Idiot
Junior Student
A rose by any other name would have as many thorns...
Posts: 143
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Post by Idiot on May 16, 2006 21:03:17 GMT -5
Redox reactions are reduction-oxidation reactions, aren't they? It's when the oxidation numbers of elements or polyatomic ions change in the reaction. I can look them up in my old chemistry book, if you'd like...
Edit: By the way, do you know why my avatar is a bunny?
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Post by Curiosity on May 17, 2006 9:01:36 GMT -5
I'm guessing you're taking Chemistry? I can try to help as well. I am completing Chem3. Do you have any specific questions? Or are you totally lost?
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Post by Sesshoumaru on May 17, 2006 17:17:35 GMT -5
Yeah...erm...well, when I try to figure it out, I know I need to seperate the elements into half reactions, but then I don't know how to properly balance them to the end and add the coefficients into the whole equation to balance it.
If that made ANY sense at all...-_-
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Idiot
Junior Student
A rose by any other name would have as many thorns...
Posts: 143
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Post by Idiot on May 17, 2006 17:57:34 GMT -5
The sum of the oxidation numbers has to be 0, and the number of atoms on each side has to be the same. The balancing is just an algebra problem, and the oxidation numbers of elements in compounds should be found somewhere in your book.
Does this help at all?
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Post by Sesshoumaru on May 19, 2006 14:00:49 GMT -5
Better than what my teacher said. He didn't tell us about finding the oxidation numbers in the book...and he's a jerk...but that's beyond the point...what exactly are the oxidation numbers?
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Idiot
Junior Student
A rose by any other name would have as many thorns...
Posts: 143
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Post by Idiot on May 19, 2006 14:13:17 GMT -5
Something to do with the electrons, I think. A quick look in the index will tell you. Elements, though, like O2 always have an oxidation state of 0. I don't remember all of the rules off the top of my head, though... I think Oxygen always has a +2, or is it -2... I just don't remember, and I don't know where my Chem book is right now... Sorry.
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Post by Curiosity on May 19, 2006 19:21:11 GMT -5
Oxidation number is just the charge. Oxygen is -2.
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Idiot
Junior Student
A rose by any other name would have as many thorns...
Posts: 143
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Post by Idiot on May 19, 2006 23:40:18 GMT -5
No, it's not just the charge. That's part of the basic concept, though.
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