What evidence do you have that water is a covalent bond?

Answer 1

Because when hydrogen atoms combine with the oxygen atom, they do so by sharing their outer shell electrons to gain a full outer shell.

Hope this helps

Answer 2

Water is not a covalent bond; it is a compound made up of covalent bonds. The molecular structure of water (H2O) consists of two hydrogen atoms bonded to one oxygen atom through covalent bonds. This arrangement leads to the sharing of electrons between the atoms, resulting in a stable water molecule.