Hydrogen Molecule. The classic case of covalent bonding, the hydrogen molecule forms by the overlap of the wavefunctions of the electrons of the respective hydrogen atoms in an interaction which is characterized as an exchange interaction.he potential energy of the anti-bonding orbital shown gives some insight into why a third hydrogen atom cannot bond to the two atoms of the hydrogen molecule. It would be in an anti-bonding situation with one of the other hydrogen atoms and would therefore be repelled.
Depending on the rest of your daily intake you may not even need to drink any extra water in the first place. As a 13 year old your total water intake should be in the region of 1.5 litres per day rising to 2 litres when you become adult.
The NHS has detailed how much water we should be drinking on their website: The European Food Safety Authority recommends that women should drink about 1.6 litres of fluid and men should drink about 2.0 litres of fluid per day. That's about eight glasses of 200ml each for a woman, and 10 glasses of 200ml each for a man.