/u/usernumber36's posts in /r/askscience

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which of the four fundamental forces is responsible for degeneracy pressure?

2123 upvotes

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How can tungsten be a metal, but have higher electronegativity than phosphorus, which is a non-metal?

124 upvotes

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what, precisely, is the difference between a dipole-dipole interaction and a "hydrogen bond"? Why is a hydrogen bond (a) different and (b) stronger?

58 upvotes

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are there any known cases where a molecular orbital ISN'T a linear combination of the atomic orbitals?

29 upvotes

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What's the deal with converting between Gibbs free energy changes and equilibrium constants?

7 upvotes

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Do sharp, principal, diffuse and fine spectral lines happen because of the orbital an electron is excited FROM, or the orbital it gets excited TO ?

1 upvotes

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what's the chemical process behind this cocaine extraction?

1 upvotes

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Psychologists - whats going on with otherkin?

1 upvotes

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is there any notable difference between male and female physical strength before puberty?

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is shifting one object up 5 inches identical to shifting the rest of the universe down 5 inches? and if so, shouldn't it take the same energy? How can shifting every object in the universe take the same energy as shifting only one object the same distance?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
which of the four fundamental forces is responsible for degeneracy pressure?	2123
How can tungsten be a metal, but have higher electronegativity than phosphorus, which is a non-metal?	124
what, precisely, is the difference between a dipole-dipole interaction and a "hydrogen bond"? Why is a hydrogen bond (a) different and (b) stronger?	58
are there any known cases where a molecular orbital ISN'T a linear combination of the atomic orbitals?	29
What's the deal with converting between Gibbs free energy changes and equilibrium constants?	7
Do sharp, principal, diffuse and fine spectral lines happen because of the orbital an electron is excited FROM, or the orbital it gets excited TO ?	1
what's the chemical process behind this cocaine extraction?	1
Psychologists - whats going on with otherkin?	1
is there any notable difference between male and female physical strength before puberty?	1
is shifting one object up 5 inches identical to shifting the rest of the universe down 5 inches? and if so, shouldn't it take the same energy? How can shifting every object in the universe take the same energy as shifting only one object the same distance?	1