Question

Write the balanced chemical equation:

A white precipitate of Silver chloride is formed by adding a solution of Sodium chloride to the Silver nitrate solution.

Answer 1

Balanced chemical equation:

A chemical equation in which the number of atoms of each element on both sides of the equation is equal is called a balanced chemical equation.

We can balance the following chemical equation by the hit-trial method.

Step: 1: Representation of the chemical equation:

$\underset{(\mathrm{Silver}\mathrm{nitrate})}{{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)}+\underset{(\mathrm{Sodium}\mathrm{chloride})}{\mathrm{NaCl}\left(\mathrm{aq}\right)}\to \underset{(\mathrm{Silver}\mathrm{chloride})}{\mathrm{AgCl}\left(\mathrm{s}\right)}+\underset{(\mathrm{Sodium}\mathrm{nitrate})}{{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)}$

Step: 2: Calculating the number of atoms on both sides of reaction:

Element	Number of atoms on the reactant side.	Number of atoms on the product side.
Ag	1	1
N	1	1
O	3	3
Na	1	1

Step: 3: Balancing the uneven numbers of atoms on the reactants and product side:

• We can see that number of atoms are same on the reactant and product sides.
• Hence, the equation is balanced.

$\underset{(\mathrm{Silver}\mathrm{nitrate})}{{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)}+\underset{(\mathrm{Sodium}\mathrm{chloride})}{\mathrm{NaCl}\left(\mathrm{aq}\right)}\to \underset{(\mathrm{Silver}\mathrm{chloride})}{\mathrm{AgCl}\left(\mathrm{s}\right)}+\underset{(\mathrm{Sodium}\mathrm{nitrate})}{{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)}$