Which statement about the following chemical reaction is not correct? 3H2 + N → 2NH
a. For every nitrogen molecule consumed, two molecules of ammonia are produced.
b. For every two molecules of nitrogen consumed, three molecules of ammonia are
produced
c. For every three molecules of hydrogen consumed, two molecules of ammonia are
produced
d. For every two molecules of ammonia produced three molecules of hydrogen are
consumed.
e. One molecule of nitrogen reacts with three molecules

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

the correct answer to this question is 2

i belive it is water