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2006-11-20 07:51:38 · 9 answers · asked by cindy l 1 in Science & Mathematics Chemistry

9 answers

Here is one of many free web sites that explains the molecular structure of water and why it is a polar molecule:

http://www.biology.arizona.edu/biochemistry/tutorials/chemistry/page3.html

2006-11-20 07:53:29 · answer #1 · answered by Anonymous · 1 0

Water is a polar molecule because it is charged. A molecule is described as being nonpolar if it isn't electrically symmetrical in all ways. Water is not symmetrical because its two hydrogen atoms are bent at an angle of 104.45 degrees. This angle is like this because the electrons of the are repelling each other. So there will natuarlly be a partially positive part in the hydrogen and a partially negative part in the oxygen

2016-05-22 00:37:11 · answer #2 · answered by Anonymous · 0 0

Chemical polarity, also known as bond polarity or just polarity, is a concept in chemistry which describes how equally bonding electrons are shared between atoms.
Examples of household polar molecules include ammonia and sugar (glucose). Polar molecules are generally able to dissolve in water (hydrophilic) due to the polar nature of water - like dissolves like. Polar molecules have slightly positive and slightly negatively charged ends.

2006-11-20 10:10:20 · answer #3 · answered by snissari 2 · 0 0

Water is a molecular compound, with two Hydrogen atoms and an Oxygen atom covalently bonded together. However, the oxygen atom pulls the shared valence electron closer to its own nucleus. It's unequal sharing of the electron. Since the oxygen hogs most of the electron, it takes on a slightly negative charge, and the hydrogens become slightly positive. It's now a polar molecule.

2006-11-20 08:03:15 · answer #4 · answered by :D 2 · 1 0

Water is called a polar molicule because of its bodage within the Hydoregen and Oxeygen Molecules. It has its speciific bond linkage called Hydrogen bond. So it is called the polar molecule.

2006-11-20 11:49:11 · answer #5 · answered by Gangi S 2 · 0 0

Hydrogen can be either electro-positive or electro-negative depending on the other element with which it combines. Oxygen is highly electro-negative. When they combine oxygen always tries to pull the electrons towards itself. Hydrogen on the other hand tries to push the electrons to oxygen. This results in a marginal positive charge on hydrogen and a marginal negative charge on oxygen. The bonding looks like this.

H
O
H

Imagine the two covalent bonds between two hydrogen and oxygen. Also imagine marginal positive charge on hydrogens and marginal negative charge on oxygen. Each hydrogen subtends approximately 108 degrees to oxygen. Due to limitations, I am unable to give the figure.

But the covalent bonding between the oxygen and hydrogen are stable. This results in a di-polar or two polar entities kept apart by the bonds.

This results in a dipole and water acting polar.

2006-11-21 05:42:45 · answer #6 · answered by krishash49 2 · 0 0

water molecular formula is H2O, In which the oxygen is more electro negative than the hydrogen atom, when the covalent bod is formed between the oxygen and hydrogen the shared pair of electron goes toward the more electronegative atom oxygen and it carries a partial n egative charge and the hydrogen is less electronegative it carries partial positive charge. due to this water is called polar molecule

2006-11-20 15:32:49 · answer #7 · answered by Prabhat kumar choudhary 2 · 0 0

Water is H2O(2 is suffix to H)

It is stable and total valency of H and O are matched exactly.

Polar because slight polarity.

So it is said to be polar molecule.

2006-11-20 09:39:31 · answer #8 · answered by minootoo 7 · 0 0

Because it has one positive and two negative charges, making it polar.

2006-11-20 07:52:47 · answer #9 · answered by Cyber Bullying Is Ugly 2 · 0 0

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