Which, if any, of the molecules in Problem 4.9 are polar? Which, if any, of the molecules in Problem 4.10 are polar? True or false? A bent molecular shape always has a bond angle near 110°. True or...

Which, if any, of the molecules in Problem 4.9 are polar? Which, if any, of the molecules in Problem 4.10 are polar? True or false? A bent molecular shape always has a bond angle near 110°. True or false? An atom surrounded by four groups of electrons always has a tetrahedral arrangement of atoms.