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The ones in the original post. Barbie, he is a teacher.
Banaras Hindu University
Something made me think MIF did not write the physcis and chemistry pages and apparently, according to Agnishom, some Subash Chandra Poudel wrote them...
It depends. I find some parts of maths and science easy and some insanely arduous. Obviously math requires just as much problem-solving skills as the sciences, hence I find it impossible to compare the to subjects. To add to that, Science has 3 main classifications which are related only barely while math has multiple sub-classes which are definitely related. 1100th post by the way.
The number of d-electrons is not equal to that of p-electrons in CI(Z = 17).
6.023 x 1019 for the second question. Also, tjis?
Just saying, are the physics and chemistry pages a bit too complicated, at least relative to the math and biology pages?
n is the number which describes the orbital size
Agnishom, you know how in the Bohr model there is only 1 quantum # for the electron configuration? A model called Schrodinger's model let us see the electron distribution in 3d space. That of course needed 3 coordinates which are called quantum numbers. Principal, magnetic and angular. In this case, n=4, l=0, ml=0, ms=-1/2 is right as it is showing an electron in the fourth energy level of orbital s. Also, mind translating that German?
Now that we have a science hq section..... My prof. gave me lot's of chem work for since I am going to my high school. Need someone to check them. Thank-you in advance.
1 The atomic masses in the periodic table are not integral numbers. For example, carbon is listed as 12.011 amu (atomic mass unit) instead of 12.000 amu. Why?(we were given a couple of options to select from)
Atomic masses listed in the periodic table are weighted averages of isotopic masses.
2 Screening by core electrons in atoms is _____
more efficient than that by valence electrons
3 According to the Valence Shell Electron Pair Repulsion theory, if there are 5 pairs of electrons in the valence shell of an atom, they will be arranged in a(n) _____ geometry.
trigonal bipyramidal
4 What is the mass in grams of 10.0 million H2O molecules?
2.990 X 10^-16
5 Which of the following is a valid set of quantum numbers?
n=4, l=0, ml=0, ms=-1/2
6 Phenol red has an indicator pH range of 6.8 to 8.4. Its acid color is yellow and basic color is red. In 0.10 M NaOH, this indicator will exhibit what color? red
7 Determine the volume (in liters) occupied by 8.0 g oxygen at STP (MW of O2 = 32 g/mol) 5.6
8 What do you call gases that do not conform to the ideal gas laws? real gases
9 Which of the following terms is used to describe the amount of heat present in a substance?
enthalpy
10 How many grams of phosphoric acid (98 g/mol) are in 175 mL of a 3.5 M solution of phosphoric acid? 60
What language is that?
Chemistry is an enthralling subject. Sure it is my least favorite science however I still love it. Bobbym, nowadays, at least in MIT, we only have about 13 labs.
I am a bit late and did not get to check out sciencehq at it's release but it is fantastic. I was waiting for you to do science and this is great!
I am veg, but I like Pav Bhaji, Pani Puri/Gol Gappa, Sev Usad etc.
Thanks; what I wanted though is the flux of the vector field.
7/3, I for one was so excited about learning calculus was purely for the sake of learning. I had no interest in calculus whatsoever, at least not at the start. Later on as time progressed, I became much more attracted to calculus. And what I meant by pressure was the constant fear of not getting in to a top university, or not achieving a 100% average.
You do not know who -He who must not be named- is?
That's true until you hit university. Until then, I was bored but I have to participate due to pressure.
Some age to be problem solving.
No, there was another post by a guest today on this thread which was composed of weird symbols only.
That's funny... Anyways, does your father work abroad? Also, I wouldn't worry too much about it if I were you.
Get 10 posts.
Majority of the time it is random.
She says she has a signature?
In my preferences, I have blocked emoticons and signatures.
Most likely it is am impersonator. I highly doubt that even the scummiest of actors would do such a thing.