Q #1: Oceanic crust is usually more active than continental. They also differ in thickness, density, age, and chemical composition.
Q #2: Hot fluid material that resides within the earth's crust from which lava and other igneous rocks are developed. <span>Q #3: Folded mountains are formed when two tectonic plates move together. This special movement of the two plates compels sedimentary rocks upwards, which results in folds. </span>
Explanation:
I think the answer is 18 km/h
Heat energy from below the ground converts water to steam to drive a steam turbine attached to an electrical generator
Answer: 
= 0.0050 M
= 0.0155 M
Explanation:
Initial moles of = 0.072 mole
Volume of container = 3.9 L
Initial concentration of 
The given balanced equilibrium reaction is,
Initial conc. 0.018 M 0
At eqm. conc. (0.018-x) M (2x) M
The expression for equilibrium constant for this reaction will be,
![K_c=\frac{[I]^2}{[I_2]}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BI%5D%5E2%7D%7B%5BI_2%5D%7D)
we are given : 
Now put all the given values in this expression, we get :
So, the concentrations for the components at equilibrium are:
![[I]=2\times x=2\times 0.0025=0.0050](https://tex.z-dn.net/?f=%5BI%5D%3D2%5Ctimes%20x%3D2%5Ctimes%200.0025%3D0.0050)
![[I_2]=0.018-x=0.018-0.0025=0.0155](https://tex.z-dn.net/?f=%5BI_2%5D%3D0.018-x%3D0.018-0.0025%3D0.0155)
Hence, concentrations of and are 0.0050 M ad 0.0155 M respectively.
50m/s
I divided the 200m by 4s (so 200/4) to get 50m per second
