Nitrogen and hydrogen react to form ammonia. consider the mixture
of n2 (blue spheres) and h2 (gray spheres) in the illustration.
all but one statement regarding the reaction is true

a)nitrogen is in excess.
b)hydrogen is in excess.
c)this is a synthesis reaction.
d)hydrogen is the limiting reactant.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.