Which of the following hybrid atomic orbitals would you consider most useful for approximating a molecular orbital scheme around the n in nh3?
select one:
a. sp2
b. 2s and 2p
c. sp3
d. sp

c. sp³

Explanation:

:NH₃ has 4 areas around the molecule where electrons are found: 3 bonds and 1 lone pair. In order to minimize electron repulsion, NH₃ will form 4 equal hybridized orbitals that orient themselves in a tetrahedral geometry. There are 1 s valence atomic orbital and 3 p valence atomic orbitals available, so they will all combine to form 4 sp³ orbitals.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.