Explain it with Molecules

water molecule tag

WATER MOLECULE

Why is water such a good solvent?

Learn to measure distances and angles of water dimers. Contains assessment questions.


ice-molecule image

MOLECULAR STRUCTURE OF ICE

Why does ice float?

Measure length of hydrogen bonds in ice using Jsmol. Measure O-O distances in water and ice.



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METHANE
What is the geometry of methane?

Measure angles in methane molecule. Contains assessment questions



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SOLIDS - LIQUIDS - GASES
Why do solids, liquids and gases behave differently?

Using the case of H2O, it is shown using Jsmol why ice, water, and water vapor behave differently.



Iberico pork from Flaveur in Nice France

ALPHA AND BETA GLUCOSE
What's the difference between alpha and beta glucose?

Jsmol for alpha and beta-glucose... What is the difference between starch and cellulose?



caffeine molecule

CAFFEINE
How does Caffeine work in the Brain?

Comparison of caffeine to adenosine. Visualize caffeine bound to A2 adenosine receptor molecule



fructose molecule

SUCROSE AND FRUCTOSE
What's the difference between surcrose and fructose?

Molecular structure comparisons of different fructose molecules and sucrose... relative sweetness graph of various sugars.



carbon monoxide molecule

CARBON MONOXIDE
Why is carbon monoxide so dangerous?

Comparison of Oxygen and Carbon Monoxide bound to heme.



carbon monoxide molecule

PSEUDOEPHEDRINE, EPHEDRINE AND METHAMPHETAMINE
What is the difference between pseudoephedrine, ephedrine and methamphetamine?

How can small changes in a molecule result in major physiological and psychological changes?



soap molecule

SOAP
How does soap work?

What is soap? How does soap work? Contains assessment questions.



Iberico pork from Flaveur in Nice France

GRAPHITE
Why is graphite so soft if it is made of only carbon?

Why is graphite so soft and diamond so hard if both are just made from carbon atoms?



hardest material in world carbyne molecule

CARBYNE
What is the difference between Carbyne and Graphite?

Is Carbyne the strongest material in the world?



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DIAMOND
Why is graphite so soft?

 Why is diamond so hard if it is made of the same substance as graphite?



fullerenens molecule C60

FULLERENE
What are the structures of Fullerenes and Nanotubes?

Why is the fullerene and similar structures the cornerstone of nanotechnology? How big is a nanotube?



salt NaCl molecule using Jsmol

SALT -- NACL
Why does table salt have a cubic crystal shape?

3-D structure of NaCl. Page contains assessment questions.



Iberico pork from Flaveur in Nice France

BENZENE
What is the structure of the benzene molecule?

What is the geometry of the benzene molecule?



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HEMOGLOBIN-S MOLECULE
What causes Sickle Cell Anemia?



Iberico pork from Flaveur in Nice France

SODIUM NITRITE -- SODIUM NITRATE
What is the difference between sodium nitrite and sodium nitrate? -

Both are used as preservatives but there are significant differences between these compounds.



Iberico pork from Flaveur in Nice France

HOW DRUGS WORK--

How do drugs work?

What causes side-effects?