It may be unreliable because it might mess something up from the speed.
All organic compounds have at least 1 carbon and 2 hydrogen atoms.
If you’re talking about a reaction, an increase in the products (values on the right side of the chemical equation) would cause the reaction to shift left instead of right. Also a decrease in the reactants.
Also, could be wrong, but increasing the volume/ decreasing the pressure on the reactant side will cause the reaction to shift left
You use either the formula
E
=
h
f
or
E
=
h
c
λ
.