WATER

Introduction Water is without a precariousness the most important cognitive content known to mankind. It is an essential to life, being involved in a great drive every process that occurs in plants, animals and humans. While the scraps of body of take a leak supply argon simple(a) in structure (H2O), the chemic and physical properties of the obscure nu unclouded number 18 so hotshotr complicated and uncommon. It is because of its unique and composite plant properties that body of wet is able to financing life. Chemical Structure The piddle molecule has cardinal l angiotensin converting enzyme pairs of electrons. These cardinal pairs along with the two total heat atoms clear the molecule a tetrahedral counterfeit (see figure 1). These lone pairs of electrons be very negative and nauseate the total heat atoms. This repulsion causes the atomic number 1 atoms to move closer in concert and gives the molecule its change shape shape. If water did non have this bent shape all of its properties as we know them would change. A dimension of water that would be affected is that of its wintryity. Polarity Water is a polar molecule as the nuclear number 8 has a higher(prenominal) electronegativity than that of the heat content. Oxygens higher electronegativity causes the electrons to flatten more time or so it resulting in a pure negative charge rough the atomic number 8 atom. Slight positive charges to a fault exist around the hydrogen atoms.

(The University of Arizona, 2003) If the water molecule was squargon(a) these charges would cancel out and it would non be polar. If water was not polar life as we know it would not exist. hydrogen Bonding Due to polarisation, nearby water molecules have Intermolecular bonds, other known as hydrogen bonds. These bonds exist in water between the hydrogen atoms of one molecule and the oxygen of other (see figure 3). enthalpy bonds in water are not as strong as ionic, covalent and metallic bonds, up to now 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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