WATER

Introduction Water is without a doubt the most great cognitive content gon to mankind. It is an essential to life, being baffling in a great deal e really impact that occurs in plants, animals and humans. While the particles of body of pissing supply atomic number 18 simple in structure (H2O), the chemical and physical properties of the abstruse atomic number 18 quite complicated and uncommon. It is because of its unique and complex properties that water is able to support life. Chemical building The water molecule has cardinal l angiotensin converting enzyme pairs of electrons. These both pairs along with the two total heat atoms clear the molecule a tetrahedral shape (see figure 1). These lone pairs of electrons argon very negative and repel the hydrogen atoms. This repulsion causes the hydrogen atoms to endure closer to feelher and gives the molecule its bent shape. If water did not have this bent shape all of its properties as we know them would chang e. A property of water that would be unnatural is that of its polarity. planetary house Water is a polar molecule as the atomic number 8 has a higher(prenominal) electronegativity than that of the hydrogen. Oxygens higher electronegativity causes the electrons to spend more time some it outgrowthing in a slight negative charge slightly the atomic number 8 atom. Slight positive charges also exist around the hydrogen atoms.

(The University of Arizona, 2003) If the water molecule was tasteful these charges would cancel out and it would not be polar. If water was not polar life as we know it would not exist. heat content Bonding Due to polarisation, n! earby water molecules have intermolecular bonds, otherwise known as hydrogen bonds. These bonds exist in water between the hydrogen atoms of one molecule and the oxygen of another (see figure 3). Hydrogen bonds in water are not as strong as ionic, covalent and metallic-looking bonds, however they are stronger than Van der Waals forces. galore(postnominal) of the unique properties of water result from Hydrogen Bonding. Unique Properties When the properties of water are compared to those of compounds with...If you want to get a full essay, modulate it on our website: OrderCustomPaper.com

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