Hydrogen Bonds

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Madison Hurst
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Joined: Fri Sep 28, 2018 12:26 am

Hydrogen Bonds

Postby Madison Hurst » Sat Nov 10, 2018 7:16 pm

Relative to other types of bonds, how strong are hydrogen bonds?

Jennifer Lathrop 1F
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Joined: Sat Dec 02, 2017 3:00 am

Re: Hydrogen Bonds

Postby Jennifer Lathrop 1F » Sat Nov 10, 2018 7:18 pm

Additionally, would it be important to be familiar with the energies of different types of bonds?

Julia Go 2L
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Re: Hydrogen Bonds

Postby Julia Go 2L » Sat Nov 10, 2018 7:30 pm

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.

Irene Zhou 1E
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Joined: Fri Sep 28, 2018 12:18 am

Re: Hydrogen Bonds

Postby Irene Zhou 1E » Sat Nov 10, 2018 7:38 pm

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.

Andrewwiner4D
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Joined: Fri Sep 28, 2018 12:28 am

Re: Hydrogen Bonds

Postby Andrewwiner4D » Sat Nov 10, 2018 9:11 pm

Covalent bonds are stronger than hydrogen bonds, but the induced dipole interactions are weaker than the hydrogen bond.

chris_tsai_4H
Posts: 52
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Re: Hydrogen Bonds

Postby chris_tsai_4H » Sat Nov 10, 2018 9:29 pm

Hydrogen bonds are the strongest among the intra molecular bonds but are weaker than the intermolecular bonds (covalent and ionic)

daisyjimenezt
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Re: Hydrogen Bonds

Postby daisyjimenezt » Sat Nov 10, 2018 10:55 pm

hydrogen bonds are the strongest bonds between molecules

Milena Aragon 2B
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Re: Hydrogen Bonds

Postby Milena Aragon 2B » Sun Nov 11, 2018 4:17 pm

Why is it that hydrogen bonds are the strongest intermolecular bonds?

Yiting_Gong_4L
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Joined: Fri Sep 28, 2018 12:25 am

Re: Hydrogen Bonds

Postby Yiting_Gong_4L » Sun Nov 11, 2018 5:09 pm

Strongest to weakest
Ionic bond > covalent bond > hydrogen bond > dipole dipole force > London forces

hanna_maillard3B
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Joined: Fri Sep 28, 2018 12:23 am

Re: Hydrogen Bonds

Postby hanna_maillard3B » Sun Nov 11, 2018 6:18 pm

Hydrogen bonds are comparatively weak. Covalent bonds are the strongest, then ionic, then hydrogen bonds.
covalent > ionic > hydrogen bonds

Ryan Troutman 4L
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Joined: Fri Sep 28, 2018 12:22 am

Re: Hydrogen Bonds

Postby Ryan Troutman 4L » Sun Nov 11, 2018 7:43 pm

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.

Liset Rivera 3A
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Joined: Fri Sep 28, 2018 12:23 am

Re: Hydrogen Bonds

Postby Liset Rivera 3A » Sun Nov 11, 2018 8:15 pm

Hydrogen bonds are stronger than dipole dipole force and London forces but weaker than ionic and covalent bonds.

505211599
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: Hydrogen Bonds

Postby 505211599 » Sun Nov 11, 2018 8:18 pm

Hydrogen bonds are the strongest intermolecular force but are still weaker than covalent and ionic bonds.

danicatran4
Posts: 35
Joined: Fri Sep 28, 2018 12:17 am

Re: Hydrogen Bonds

Postby danicatran4 » Sun Nov 11, 2018 11:22 pm

From Friday's lecture, what does "hydrogen bonds are most electrostatic in nature mean"?

Josceline 3J
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Joined: Fri Sep 28, 2018 12:21 am

Re: Hydrogen Bonds

Postby Josceline 3J » Sun Nov 11, 2018 11:57 pm

What exactly makes hydrogen bonds and covalent bonds strong?

Rylee Nelsen 3A
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Joined: Fri Sep 28, 2018 12:22 am

Re: Hydrogen Bonds

Postby Rylee Nelsen 3A » Sun Nov 11, 2018 11:59 pm

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.

josephperez_2C
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Re: Hydrogen Bonds

Postby josephperez_2C » Mon Nov 12, 2018 4:49 am

Hydrogen bonds are considered one of the stronger intermolecular attractions, but they are still weaker than covalent and ionic bonds.

Alan Chang
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Joined: Fri Sep 28, 2018 12:29 am

Re: Hydrogen Bonds

Postby Alan Chang » Mon Nov 12, 2018 6:39 pm

Hydrogen bonds are the strongest intermolecular forces.

Brian Hom 2F
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Joined: Fri Sep 28, 2018 12:24 am

Re: Hydrogen Bonds

Postby Brian Hom 2F » Mon Nov 12, 2018 6:49 pm

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.

Henry Dudley 1G
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Joined: Fri Sep 28, 2018 12:16 am

Re: Hydrogen Bonds

Postby Henry Dudley 1G » Thu Nov 15, 2018 11:18 pm

In order for hydrogen bonding to occur, does there have to be a lone pair of electrons the hydrogen atom can attach to?

RoopshaChatterjee 1G
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Joined: Fri Sep 28, 2018 12:17 am

Re: Hydrogen Bonds

Postby RoopshaChatterjee 1G » Sun Nov 18, 2018 3:10 pm

Are there any applications to Hydrogen bonding being the strongest bonds?


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