water possesses a unique characteristic found in few liquids.....?

Question

what is it and why is it important?
hint:think about fish,ice and density will someone please help me

Answer 1

Water expands when it freezes.

1. So ... water forms on the top surface of lakes, ponds, and rivers, leaving a habitable environment underneath during the winter.
2. Water freezes and expands in the cracks of rocks, helping to form soil.
3. Water can kill cells when in freezes inside the cell and breaks the cell.

Answer 2

Hydrogen bonding. In chemistry, a hydrogen bond is a form of appealing intermolecular tension that exists between 2 partial electric powered quotes of opposite polarity. because of the fact the call "hydrogen bond" implies, one component of the bond includes a hydrogen atom. The hydrogen atom would desire to be related to between the climate oxygen, nitrogen or fluorine, all of that are strongly electronegative heteroatoms. those bonding aspects are known because of the fact the hydrogen-bond donor. This electronegative element attracts the electron cloud from around the hydrogen nucleus and, by using decentralizing the cloud, leaves the atom with an outstanding partial charge. with the aid of small length of hydrogen relative to different atoms and molecules, the ensuing charge, nonetheless purely partial, inspite of the undeniable fact that represents a huge charge density. A hydrogen bond outcomes whilst this solid beneficial charge density attracts a lone pair of electrons on yet another heteroatom, which will become the hydrogen-bond acceptor. In a discrete water molecule, water has 2 hydrogen atoms and one oxygen atom. 2 molecules of water can type a hydrogen bond between them; the simplest case, whilst purely 2 molecules are recent, is termed the water dimer and is common as a kind equipment. whilst greater molecules are recent, as is the case in liquid water, greater bonds are conceivable because of the fact the oxygen of one water molecule has 2 lone pairs of electrons, each and every of that can type a hydrogen bond with hydrogens on 2 different water molecules. this would repeat so as that each and every water molecule is H-bonded with as much as 4 different molecules, as shown interior the parent (2 via its 2 lone pairs, and a pair of via its 2 hydrogen atoms.) Liquid water's severe boiling factor is as a results of the severe kind of hydrogen bonds each and every molecule could have relative to its low molecular mass. Water is unique because of the fact its oxygen atom has 2 lone pairs and a pair of hydrogen atoms, meaning that the completed kind of bonds of a water molecule is as much as 4.

Answer 3

water is a polar molecules that dissolve many solutes. when it solidify (become ice) the density increases.