(a) 3.74 mol Li to g Li g:
(b) 8.24 g Co to mol Co
mol
g:
(C) 5.58 g Kr to mol Kr
mol
g:
(d) 0.6330 mol As to g As
g:

SOME PLEASE HELP

a. they are both space stations

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gas

explanation:

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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.

the answer is 75.0%.