Answer:
HNO3 + NaOH --> NaNO₃ + H₂O.
The reaction is already balanced as the number of atoms of each element are equal on both reactants and products sides.
Step-by-step explanation:
A Neutralization reaction is also called a Acid - Base Reaction.
In a acid - base reaction an acid reacts with a base to form water and salt.
Here HNO₃ is the acid and NaOH is the base.
The Hydrogen(H) in HNO₃ combines with OH of NaOH and forms H₂O, i.e. Water.
The Sodium(Na) in NaNO₃ combines with NO₃ in HNO₃ and forms NaNO₃ which is a Salt.
Therefore, the products are H₂O and NaNO₃.
This is a double replacement reaction because Hydrogen(H) in HNO₃ replaces Na in NaOH, and NO₃ in HNO₃ replaces OH in NaOH.
Therefore there are two replacements and this is called double replacement reaction.