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I am glad i am not the only geek who thought about this all of last year in Biology...... XD xD xD


Polarity and Hydrogen Bonds - YouTube more about water; temp moderation, density, states, hydrogen bonds, expansion upon freezing, aqueous solutions, NaCl in water @


Hydrogen bonding between water molecules. H bonding is responsible for many of the important properties of water such as high cohesion, surface tension, boiling point and its role as a universal solvent.


How Hydrogen Bonds Work

How Hydrogen Bonds Work: Hydrogen bonding can occur within a molecule or between hydrogen and atoms of other molecules, such as between hydrogen and oxygen atoms of different water molecules.


This would be a great bonding lesson transitioning from lewis dot structures. After students realize where the unpaired electrons are they can model bonding using this activity. This would also beautifully model double and triple bonds. Students can redraw these models in their notebooks. Physical Science Activities


Free biochemistry review activity on hydrogen bonds and polar molecules. Features embedded interactives from the Next-Generation Molecular Workbench.


Bond Types and Properties: Covalent, Ionic, and Hydrogen Bonds

This PowerPoint presentation cover the three main types of bonds: covalent, ionic, and hydrogen bonds. Bond symbols and their meanings are also included. Examples of single, double, and triple bonds are given along with descriptions of these bonds. Ionic bonding and the characteristics of an ionic bond are discussed; an animation further adds to the description.

This video describes major intermolecular forces discussed in chapter 11. Dipole-dipole forces increase in strength with increasing polarity. London dispersion forces increase in strength with increasing molecular weight. Hydrogen bonding occurs in compounds containing O-H, N-H, and F-H bonds. Hydrogen bonds are generally stronger than dipole-dipole and dispersion forces. This video clearly summarized and clarified my knowledge of intermolecular forces.


The Very First Image of a Hydrogen Bond

Using a technique called high-resolution atomic force microscopy (AFM), researchers in China have visualized the molecular structure of a hydrogen bond.