PLEASE HELP NEED ANSWER ASAP Use 3 H2(g) + N2(g) <--> 2 NH3 (g) + 92.4 kJ

At equilibrium, if the hydrogen (H2) concentration is increased, the ammonia(NH3) concentration will

Select one:
a. decrease
b. shifts back and forth
c. increase
d. remain the same

the correct answer is option A. decrease

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

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.