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Hydrogen Bonds

Posted: Sat Nov 10, 2018 7:16 pm
by Madison Hurst
Relative to other types of bonds, how strong are hydrogen bonds?

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 7:18 pm
by Jennifer Lathrop 1F
Additionally, would it be important to be familiar with the energies of different types of bonds?

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 7:30 pm
by Julia Go 2L
Hydrogen bonds are strong bonds and they are one of the strongest intramolecular attractions. It takes a considerable amount of energy to break hydrogen bonds. Water has a high boiling and melting point because they have strong hydrogen bonds.

However, hydrogen bonds are still weaker than covalent bonds and ionic bonds.

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 7:38 pm
by Irene Zhou 1E
Hydrogen bonding is the strongest intermolecular force, but it is still weaker than a covalent or ionic bond. Hydrogen bonds are responsible for holding together DNA, proteins, and other macromolecules and the high melting and boiling point of water.

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 9:11 pm
by Andrewwiner4D
Covalent bonds are stronger than hydrogen bonds, but the induced dipole interactions are weaker than the hydrogen bond.

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 9:29 pm
by chris_tsai_4H
Hydrogen bonds are the strongest among the intra molecular bonds but are weaker than the intermolecular bonds (covalent and ionic)

Re: Hydrogen Bonds

Posted: Sat Nov 10, 2018 10:55 pm
by daisyjimenezt
hydrogen bonds are the strongest bonds between molecules

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 4:17 pm
by Milena Aragon 2B
Why is it that hydrogen bonds are the strongest intermolecular bonds?

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 5:09 pm
by Yiting_Gong_4L
Strongest to weakest
Ionic bond > covalent bond > hydrogen bond > dipole dipole force > London forces

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 6:18 pm
by hanna_maillard3B
Hydrogen bonds are comparatively weak. Covalent bonds are the strongest, then ionic, then hydrogen bonds.
covalent > ionic > hydrogen bonds

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 7:43 pm
by Ryan Troutman 4L
Responding to Milena: Hydrogen bonding is so strong because of the positive delta in the hydrogen of one water molecule and the high electronegativity in the delta negative in oxygen. This "bond" between the two are much stronger than dipole-dipole and London dispersion, but very weak compared to the intramolecular forces of ionic and covalent. If you think about making food (I'll use Mac n Cheese because I'm craving it), you have a pot of water with 5 cups of water, you have many hydrogen bonds between all of the water molecules. To boil it, you have to break those bonds in order to create that rolling boil (and steam comes off of it as well.) Without hydrogen bonds being strong, our ocean could easily just boil up if the boiling point was much lower.

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 8:15 pm
by Liset Rivera 3A
Hydrogen bonds are stronger than dipole dipole force and London forces but weaker than ionic and covalent bonds.

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 8:18 pm
by 505211599
Hydrogen bonds are the strongest intermolecular force but are still weaker than covalent and ionic bonds.

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 11:22 pm
by danicatran4
From Friday's lecture, what does "hydrogen bonds are most electrostatic in nature mean"?

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 11:57 pm
by Josceline 3J
What exactly makes hydrogen bonds and covalent bonds strong?

Re: Hydrogen Bonds

Posted: Sun Nov 11, 2018 11:59 pm
by Rylee Nelsen 3A
It's a type of weak chemical bond that occurs when the partially positive hydrogen atom participating in a polar covalent bond in a molecule attracts partially negative atom or atoms of neighboring molecules.

Re: Hydrogen Bonds

Posted: Mon Nov 12, 2018 4:49 am
by josephperez_2C
Hydrogen bonds are considered one of the stronger intermolecular attractions, but they are still weaker than covalent and ionic bonds.

Re: Hydrogen Bonds

Posted: Mon Nov 12, 2018 6:39 pm
by Alan Chang
Hydrogen bonds are the strongest intermolecular forces.

Re: Hydrogen Bonds

Posted: Mon Nov 12, 2018 6:49 pm
by Brian Hom 2F
Hydrogen bonds are very strong and this explains why it takes a very hot temperature to boil water. For water to evaporate, you need all the hydrogen bonds broken. They are -20kJ/mol.

Re: Hydrogen Bonds

Posted: Thu Nov 15, 2018 11:18 pm
by Henry Dudley 1G
In order for hydrogen bonding to occur, does there have to be a lone pair of electrons the hydrogen atom can attach to?

Re: Hydrogen Bonds

Posted: Sun Nov 18, 2018 3:10 pm
by RoopshaChatterjee 1G
Are there any applications to Hydrogen bonding being the strongest bonds?