Question

Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction 2NaN3(s)—> 3N2(g)+2Na(s) Identify the number of each atom in the reactants and products for this balance reaction.

Answer 1

If the equation is balanced the amount of atoms in the reactants will be the same in the products


Number of atoms in reactants 2NaN3
Na - 2
N - 6

The 2 applies to the whole compound, multiple 2 by 3 for the nitrogen


Number of atoms in products 3N2 + 2Na
Na - 2
N - 6