Chemical bonds in Water

Hello everyone ,

Today I will be explaining about Chemical bonds in Water . You may be thinking why I am dealing with chemistry here .You know that water is universal solvent and are used by us everyday . So what may be the reasons for making the water such a wonderful solute. The answer to all these questions will be answered below.

As water is the most abundant substance in living systems,making up to around 70% of weight of most organisms.Water consists of combination of three nuclei and eight electrons which  possesses special properties that make it unique among the more than 15 million chemical species we presently know.

The water molecule is tetrahedron with oxygen in it's center.and shows sp3-hybridization having 109.5° angle .

Water has high Melting point, Boiling point, heat of vaporization, dielectric constant (78.5). These unusual properties are consequence of attraction between adjacent water molecules that give water great internal cohesion which is the cause of inter molecular attraction.water is Dipole (electric charge distributed asymmetrically) with strong electronegative oxygen atom and partial positive charged hydrogen atom . It's strong dipole and high dielectric constant enables water to dissolve large quantities of charged compounds .

Polar molecules dissolve readily, because they can replace water -water interaction with water- solute interaction which a non polar molecule cannot do and thus get clustered.

Each hydrogen nucleus is bound to the central oxygen atom by a pair of electrons that are shared between them;  this shared electron pair is called as a Covalent chemical bond.

The H₂O molecule is electrically neutral, but the positive and negative charges are not distributed uniformly. Each hydrogen atom of water molecules shares an electron pair with oxygen.The H bears +ve charge and O as -ve. As a result there is a electrostatic attraction between the O atom of one water molecules and H of another, called Hydrogen Bond.

with love

-Dixy

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