Question

Explain why the HOH molecule is bent, whereas the HBeH molecule is linear. Water, HOH, has bonding electron pairs and lone pair(s) of electrons. The placement of these electrons forces electron-pair geometry, and the resulting HOH molecule is bent. The HBeH molecule has bonding electron pairs and lone pair(s) of electrons. The bonding pairs of electrons must be as one another as possible, resulting in a linear HBeH molecule.

Answer 1

Water (HoH) has

2

bonding electrons and 2 lone pairs. The placement of these electrons is going to be a tetrahedral electron-pair geometry. The HBeH molecule has 2 bonding electron pairs and 0 lone pairs. The bonding pairs must be as far from one another as possible.

Step-by-step explanation:

I hope that helps any one in the future who needs it <3

Answer 2

The question is already answered from one point of view but I'll add BeH2 has sp hybridization and H2O has sp3 hybridization getting a different structure type cause where the electron pairs are located around the central atom, that means that you will see the next structures from these molecules.