Recent content by superdude

Hey guys, I have a ti89 but I lost the USB cable that came with the calculator. I am trying to transfer some data to the calculator, but can I use any regular USB cable to do so? Thats what I read when I searched, but when I use the USB cable that came with my digital camera it says "TI 89...

so what are the degrees of the other diretions? east, south, west?

Hello: I don't have a question on how to solve a specific problem, rather vectors in general. In my book, they often give vector direction by stating "due north", "due east", "due west", "due south". However, I can't figure out which of these directions correspond with what degree. For...

I think I am beginning to understand this now. 1. Assign ox states, see what is oxidized and what is reduced. 2. "Split the elements", but if it is a polyatomic ion, you keep that together. In this problem, you would split Na2Cr2O7 into 2Na^+1 + 2Cr^6 + 7O^-2. Then you would split HNO3...

So would this turn out to be: 2 Na + Cr2O7^2- + H + NO3 2- + 2 Na + SO3 ^ 2- yields Na + NO3 + Cr(NO3)3 + 2 NA + SO4 ^ 3 + H2O and when you refer to "ionic" species, what are you referring to exactly? Thanks for the help

open second review, it seems that they separated polyatomic ions from the main elements. is this possible? and would you follow this step for other ox redox reactions?

Hello, Can someone please explain to me something here please? In this oxidation problem Na2Cr2O7 + HNO3 + Na2SO3 yields NaNO3 + Cr(NO3)3 + Na2SO4 + H2O I know S is Oxidized and Cr is Reduced. However, when I look at the solution set, I am get completely confused. They are putting...