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How would I draw lewis structure of [NO4]3-, with the lone pair electrons, and with the formal charges minimized? NO4 3- Have been stuck on this question for over an hour.

Does anyone here study neuroscience? Any neuroscience researchers or professors? Would you care to share some of your educational or professional experiences/knowledge? I'm considering the field..

Any Ivy League or alike students here? I`m interested in stories about people who got accepted there and how. Needless to say, it`s my dream to get in such a fancy university. However, my iq is about 135 according to dumb online tests, so i`ll probably never achieve that. Since this is argueably the smartest board on the chans, this must be the place to come.

Given: The Moment Generating Function of X is M(t)=(e^5t - e^4t) / t, t=/=0 and the M(0)=1 Want to find: P(4.2 < X <= 4.7) What method do I need to use to find this?

Is Depression actually real, or just the result of whiny people feeling sorry for themselves? Does the "victim mentality" pervasive in our society just prolong the depression? How many depressed people are actually just whiny entitled faggots who feel like the world "ripped them off"? Is depression just the result of jewish propaganda?

how the integral calculus with d? works? In the polar coordinate system example: the picture p.s.: sorry for my vocabulary

One of my friends is beginning to romanticize the usage of cannabis. I am split on what to do about it. I think it would be okay to let her try it once; however, I don't know if she will continue to chronically use it... my scientific knowledge of cannabis is that although it is a good example of certain novel compounds that we can use and emulate in pharmacology for specific uses, it, as a whole, is not something to use as a crutch or use due to its long term effects. Would anyone like to agree or disagree with me using peer reviewed papers? Thanks in advance.

Hey guise. didya hear? black holes don't have mass http://bigbang-entanglement.blogspot.ca/2010/03/zero-point-energy-examples-around-ball.html what think?

http://phet.colorado.edu/sims/my-solar-system/my-solar-system_en.html >design your own solar system Nuff' said.

Lots of mass..

What must turgor pressure be if there is no net diffusion?

I'm sure this has already been done, but what is 0/0? I personally think that it can equal any real number, but some people would say it's 1 or 0 ect. Pic unrelated

Hey /sci/, Layman here, What do you suppose were to happen if a black hole came into contact with another black hole?

James Bond has a 1st in oriental languages he got from Cambridge in stead of STEM. Would you tell James Bond he has a useless degree?

EXAMPLE: 1000 - 23 I forgot all my math from before 2nd grade. Show me how to solve. I know the answer, but I need to know how to solve by hand. Why is life so hard?

Hi, I have a math question for you. Cant understand how to begin to solve this.. ''Electrolysis of aluminum takes 40 million coulombs to draw out 3.7kg Al. What must the current be to do it in A one minute and B one hour?'' Is this question impossible to solve due to lack of other factors?? it is a total mindfuck for me. I know that 1c = 1 ampere per second.. Can anyone please help?

Hi /sci/ (picture not related) So i was thinking how many amazing things one simple cell can do with some time. But then a question poped out in my head. Were did the first cell come from? anyone got a clue?

Hi guys, I have a math problem for you. I was unable to solve it, and the submission deadline has already passed (this is for a Calc I class), meaning I won't get credit for it - so don't worry. The professor won't point me in the right direction, and I do want to know the answer as it's the only special problem I couldn't solve. Here goes. Find a real-valued function, f, with domain [0,1] such that: - f(0) < f(1) - f is continuous - For all a and b, where 0 < a < b < 1, f is not increasing on [a, b].

I once failed a course. 50% of the grade from cases counted for 5.8 out of 10. the other 50% test grade counted for 4.5 out of 10. the average was 5.2 out of 10 rounded up. (needs 5.5 to pass) I follow the same course this semester however the grading has changed. 20% of the grade from cases 80% of the grade now counts for the test. Imagine in this new situation i would not do the test(unwise) and my test average remains a 4.5, what grade do i need for the other 20% as to reach the same insufficient grade of 5.2 on average?

Why vaginas smell like fish?