Which of the following is the correct Lewis structure for ammonia (NH3)? Note: Hydrogen and nitrogen have one and five valence electrons
respectively.
Н
H
1
N
H-N-H
H-N-H
H-N-H
-
Н
H
Н
Н
H
А
B
с
D
E
A figure A
B. figure B
C. figure C
D.
figure D
E.
figure E

positive reinforcement? ?

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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