22. Mona is in her garden jumping on stones (as shown below). She starts from the 68th stone. She jumps 23 stones ahead and then 28 stones back. Where will she be now?

(A) 51 stones ahead of the starting stone. (B) 5 stones ahead of the starting stone.

(C) 5 stones behind the starting stone. (D) 28 stones behind the starting stone.

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

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro