Nov 16, 2011 · The answer is the same as it is for most structural problems in chemistry: the structure (in this case sp3 hybrdization) is the way it is to reduce repulsion. Water would be linear if the hydrogen shared an electron with the p orbitals and all of the electrons would be closer together.
May 02, 2020 · Free interactive 3D chemistry animations and models for advanced school chemistry and undergraduate chemistry education hosted by University of Liverpool