Gina designed a model to show the steps in the nebular theory of formation of planetary systems. which of these diagrams best represents the third step of gina's model?
A.) condensation and contraction of cloud do to gravity

B.) rotation of cloud of gas and dust

C.) formation of planet

D.) fusion of gas and dust at the center to form the sun

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next