posted May 18, 2014, 7:01 PM by Unknown user   [ updated May 18, 2014, 7:10 PM ]
H2O is the formula of water.  The formula stands for 2 hydrogen atoms & one oxygen atom.  Water can only form when all those 3 atoms collide at room temperature {25 degrees Celsius} making the water pure.  If the combination of those 3 atoms were at a higher temperature, then the substance (pressured air) would be lethal & hot enough to melt plastic.  But, if they combined at a lower temperature then the liquid would turn into a pressures solid [in other words, it's known as ice].  Hydrogen is the first element in The Periodic Time-Table & oxygen is the eighth.  H2O can actually be separated into two parts; hydrogen & oxygen.  If they were separated they'll have to be separated in gas form. Unless these gases are compressed then they'll be separated liquids that are:-
1:- Odorless
2:- Colorless
3:- Tasteless

That's why the formula of water is called H2O.