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 Table of Contents
 • Introductory Comments
 • What is Molecular Modeling?
 • Why is Molecular Modeling Important?
 • What do some common molecules look like?
 • Where's the Math?
 • Carbon 3 Ways
 • Carbon Compounds
 • Water and Ice
 • Water and Ice pt.II
 • How to view structures in class or at home
 • MathMol Library of Structures.
 • Tutorial 1: 1-Dimension, 2-Dimensions, 3-Dimensions...
 • Tutorial2: The Geometry of 2 Dimensions..
 • Tutorial3: The Geometry of 3- Dimensions
 • Tutorial4: The Geometry of Molecules.
 • Appendix1: Scientific Notation
 • Appendix 2: Mass
 • Appendix3: Volume
 • Appendix4: Density
 

WATER DIMER

 

Why does this happen?

Why do the oxygen atoms continue to be attracted to hydrogen atoms? Remember water is a polar molecule....

A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen. In a covalent bond electrons are shared between atoms. In water the sharing is not equal. The oxygen atom attracts the electrons more strongly than the hydrogen.This gives water an asymmetrical distribution of charge. Molecules that have ends with partial negative and positive charges are known as polar molecules. It is this polar property that allows water to separate polar solute molecules and explains why water can dissolve so many substances.


The positive regions in one water will attract the negatively charged regions in other waters. The dashes show the hydrogen bond. In a hydrogen bond a hydrogen atom is shared by two other atoms.

 

Return to the Water Module

 

 

 


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