Select the correct value for the indicated bond angle in each of the compounds.

90°, 180°, 109.5°, 120°, <120°, <109.5°

a) O−O−O angle of O3
b) F−B−F angle of BF3
c) F−O−F angle of OF2
d) Cl−Be−Cl angle of BeCl2
e) F−P−F angle of PF3
f) Cl−Si−Cl angle of SiCl4

Bond angle is defined as the angle between two or more bonds or bonded electron pairs in a compound.

Explanation:

a) O−O−O angle of O3 - <120°

b) F−B−F angle of BF3 - 120°

c) F−O−F angle of OF2 - <109.5

d) Cl−Be−Cl angle of BeCl2 - 180°

e) F−P−F angle of PF3 - 109.5°

f) Cl−Si−Cl angle of SiCl4 - 90°

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.