Tuesday
March 3, 2015

Posts by Alyssa


Total # Posts: 607

science
how do u find out the purity of sand
November 30, 2006

ion concentration
Which of the following is responsible for maintaining the difference in ion concentration across the membrane of a nerve cell? here are choices the sodium-potassium pump the action potential the depolarization of the membrane the ion channels in the membrane I think it is the ...
November 26, 2006

Calculus
i dont understand
November 14, 2006

chem
Indicate which is lower in energy in a many-electron atom: 3d or 4s Would it be 4s [because it fills before 3d]? That is correct is almost all cases. There is an exception for Cr and Cu; however, I think the intent of the problem clearly means the 4s (and for the reason you ...
November 7, 2006

Pigskin Geography
i need all the answers to week 11 please help!
October 30, 2006

CHemistry
Is the charge of nitrogen in N2O +1? If you are talking about the oxidation state of N in N2O, yes, it is +1. Charge, to me, implies that N2O is an ionic compound and it is covalent, not ionic.
October 25, 2006

German
I am not doing to good in my German class and I was wondering if anyone knew of a way I could learn outside of school? Maybe a site that teaches the basics? Or maybe someone on here that is willing to help? I really have no clue on how I can get some help, only like three ...
August 30, 2006

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