Chemical reactions and equations are fundamental concepts in chemistry that describe the transformation of substances into new substances through the rearrangement of atoms. A chemical equation is a symbolic representation of a chemical reaction, which includes the reactants and products involved.

The chemical equation you provided, N2 + 3H2 = 2NH3, represents the reaction between nitrogen gas (N2) and hydrogen gas (H2) to produce ammonia gas (NH3). Let's break it down step by step:

Reactants:
- Nitrogen gas (N2): This is a diatomic molecule composed of two nitrogen atoms bonded together. It is a colorless and odorless gas that makes up about 78% of the Earth's atmosphere.
- Hydrogen gas (H2): This is also a diatomic molecule composed of two hydrogen atoms bonded together. It is a colorless and highly flammable gas that is the lightest element in the periodic table.

Products:
- Ammonia gas (NH3): This is a compound composed of one nitrogen atom bonded to three hydrogen atoms. It is a colorless gas with a pungent odor and is commonly used in fertilizers and cleaning products.

Balancing the equation:
The numbers in front of the chemical formulas are called coefficients and represent the relative amounts of each substance involved in the reaction. In this equation, the coefficients are already balanced, indicating that the number of atoms on the reactant side is equal to the number of atoms on the product side.

Interpreting the equation:
The equation can be read as follows:
- One molecule of nitrogen gas (N2) reacts with three molecules of hydrogen gas (3H2).
- The reaction produces two molecules of ammonia gas (2NH3).

The equation also provides information about the stoichiometry of the reaction. In this case, it tells us that for every one molecule of nitrogen gas and three molecules of hydrogen gas, two molecules of ammonia gas are produced.

Overall, understanding chemical reactions and equations is crucial in chemistry as it allows us to predict and interpret the behavior of substances during reactions. It helps chemists in various fields, such as pharmaceuticals, materials science, and environmental science, to design and optimize chemical processes for practical applications.

Hii.. See Nitrogen is Diatomic that's why 2, NH3 Is a compound which is the formula of it.. As in the product side Hydrogen and becoming 3, we must multiply H2 by 3 and NH3 By 2.. TRICK-LCM OF 2 AND 3 IS 6