NH3 has sp3 hybridization.
In BF3 Boron (B) forms three sigma bonds with three fluorine (F) atoms. It utilizes one s and two p orbitals for bonding, resulting in sp2 hybridization around boron.
H2O has sp3 hybridization.
In BeCl2 (beryllium chloride), beryllium (Be) forms two sigma bonds with two chlorine (Cl) atoms. It utilizes one s and one p orbital for bonding, resulting in sp hybridization around beryllium
In BF3 Boron (B) forms three sigma bonds with three fluorine (F) atoms. It utilizes one s and two p orbitals for bonding, resulting in sp2 hybridization around boron.