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HomeHomework HelpchemistryHydrogen Bonds

Hydrogen Bonds

Hydrogen bonds are weak, non-covalent interactions that occur between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom, resulting in a partial positive charge on the hydrogen and a partial negative charge on the other atom. These bonds play a crucial role in stabilizing the structures of proteins, nucleic acids, and other biological molecules.

intermediate
2 hours
Chemistry
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Hydrogen bonds are essential interactions that occur between molecules, particularly those containing hydrogen and electronegative atoms like oxygen and nitrogen. These bonds, while weaker than covalent bonds, play a significant role in determining the properties of water, which is vital for life. T...

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Key Terms

Electronegativity
A measure of an atom's ability to attract and hold onto electrons.

Example: Fluorine is the most electronegative element.

Covalent Bond
A bond formed when two atoms share electrons.

Example: The bond between hydrogen and oxygen in water.

Polarity
A property of molecules with a positive and negative end due to unequal sharing of electrons.

Example: Water is a polar molecule.

Hydrogen Bond
A weak bond between a hydrogen atom and an electronegative atom.

Example: Hydrogen bonds between water molecules create surface tension.

Cohesion
The attraction between molecules of the same substance.

Example: Water droplets form due to cohesion.

Adhesion
The attraction between molecules of different substances.

Example: Water adhering to a glass surface.

Related Topics

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Explore the strong attractions between charged ions and their significance in compounds.
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Covalent Bonds
Learn about the sharing of electrons between atoms and how it forms molecules.
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Molecular Polarity
Understand how the distribution of charge affects molecular interactions and properties.
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Chemical Reactions
Study how bonds break and form during chemical reactions, affecting substance properties.
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Key Concepts

ElectronegativityMolecular InteractionsWater PropertiesBiological Significance