Why is water so unique?

The reason for water being different from many other cells is because water has a special type of bond called a polar covalent bond. This means that the electrons are shared throughout the molecule unequally.   

In addition, because the electrons spend more time surrounding the oxygen atom, the oxygen has a negative charge, and the hydrogenation have a net positive charge. That's why it is polar. Two polar molecules attract to each other and form a lattice. Water molecules are connected together by hydrogen bonds. Hydrogen bonds are weak in small numbers but lots of them together they are very strong, making water very stable. 

Another interesting fact is that a lot of energy is needed to break a water lattice, making it have a wide temperature range that water is stable at which is 0-100°C. The final unique thing that I know about is that is occurs naturally in three states of matter( liquid, solid and gas).

Some of the properties of water are surface tension. The water molecule are cohesive meaning they sick together. This is why you can fill a cup past the "full" point. Like in this picture.

Another property is capillary Action. This is where water is sucked up a small tube against the force of gravity because the water molecules are cohesive and adhesive so they sick to themselves as well as the outer surface.

Heat and vaporization is anothe property of water. This means that a lot of energy is needed to break water lattice apart making water stable over a wide range.

Ionization of water is a property of water. When the attraction is greater for something else, the hydrogen bonds will break and tear water molecules apart. This causes oxygen and hydrogen to dissociate into ions. H2O ---> H+ +  OH-

Finally the last property is the solvent properties, it can dissolve any ionic compound.  The polarity of water molecules will break the bonds between ionic compounds and the slightly positive hydrogen attract the negative ions and vise versa.