In a neutralization reaction, where does water come into play

Which statement about enzymes is true

If the symbol x represents a central atom, y represents outer atoms, and z represents lone pairs on the central atom, the structure. classify these structures by the hybridization of the central atom. sp sp2 sp3 sp3d sp3d2 xy2, xy3 , xy4, xy5, xy2z,xy6,xy2z2,xy2z3,xy3z2,xy4z,xy4z2,xyz3xy5z

Which of the following forces causes comets to regularly return to the inner solar system after being gone for many years? a. gravity b. friction c. electromagnetic force d. magnetism