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Balance the equation N2 + H2 → NH3
To correctly solve an equation, it is necessary to keep the molecularity of each atom on both the left-hand side, also known as the reactant side and the right-hand side, also known as the product side, at the same level. Through the combination of nitrogen and hydrogen gas, ammonia may be created through this process.
N + H → NH3
The main thing is that both nitrogen and hydrogen exist as diatomic molecules in their typical gaseous state. This results in an adjustment to the equation that is
N2 + H2 → NH3
Because we now have the equation written out, we can adjust the coefficients to bring the atoms on both sides of the equation into a state of equilibrium. At this point in time, the reactant side is composed of two atoms of nitrogen and two hydrogen atoms, whereas the product side is composed of one atom of nitrogen and three hydrogen atoms.
A coefficient of 2 can be placed in front of the ammonia, and a coefficient of 3 can be placed in front of the hydrogen to achieve a balance of hydrogens.
N2 + 3H2 → 2NH3
This provides us with six hydrogen atoms on each side, and as a happy coincidence, there are now two nitrogen atoms on each side. Some of you might get the order of reaction and molecularity mixed up, yet these two concepts couldn’t possibly be more dissimilar to one another.
Since the reaction sequence is a quantity that can only be determined by experiment, molecularity is a theoretical concept. But in the case of elementary reactions, also known as single-step reactions, these two aspects are identical.
