When the negative atom within one water molecule "touches" a positively charged atom of another water molecule, they form a hydrogen bond.
The chemical formula for water is H2O. What this means is that a single water molecule is made up of:
- a Single Oxegen atom
- two Hydrogen atoms
The negative pole of the water molecule is the oxygen atom, which is attracted to the positive pole of neighboring water molecules that are formed by their respective hydrogen atoms.
The electronegativity of the atoms involved causes the oxygen atom of one molecule of water, and the hydrogen atoms of another, to share electrons with it, thus forming a covalent bond.
For more information on covalent bonds see:
https://brainly.com/question/10863848?referrer=searchResults
