In an IR spectra the X axis is wavenumber of the IR radiation which is another way to describe the of the radiation. There is a direct correlation between wavenumber and energy, thus the higher the wave number the the energy The Y axis is which is a measure of the light that makes it through the sample to the detector. Light that does not make it through the sample to the detector is by a functional group in the molecule and converted to

Energy, more.

Explanation:

wavenumbers are directly proportional to energy and frequency of the radiation means that if one increases the other automatically increases whereas one decreases the other is also decreases. If the wavenumber increases, the energy of radiation is also increases while on the other hand, if the wavenumber decreases the frequency and energy of radiation is also decreases.

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.

i think it is d. e because the next one is igneous.