Una familia viaja en su auto cuando otro vehículo choca contra ello, en el auto se encontraba el padre y dos niños de 3 y 15 años. ¿Cuál de ello experimentará mas inercia? *

What element breaks down into yttrium-90?

List four observations that indicate that a chemical reaction may be taking place

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