Question

What is the difference between H2O and OH?​

Answer 1

Answer:

The atoms will bond where there are unshared electron pairs. OH2 is written that way because it is just more convenient to show that the H2O is oriented that direction in order to bond to the central atom.

Answer 2

$\mapsto$ The atoms will bond where there are unshared electron pairs. OH2 is written that way because it is just more convenient to show that the H2O is oriented that direction in order to bond to the central atom.