What is the difference between a measured value and an accepted value? how are these values used to determine the precision of your answer?

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

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

What does an electron configuration for an atom relate to the atoms placement on the periodic table