Neutralization reaction is a reaction in which an acid is react with a base to form water and salt.

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What is neutralization reaction

Neutralization reaction is a chemical reaction process in which acid (HCl) and base (alkali, nacl) reacte together to form water and salt as a product. it is called acid-base neutralization reaction. It is combination of H+ ions and OH+ ions which they form water and salt as a product.

Neutralization reaction

In case of neutralization process , acid(HCl) react with base(Nacl) to give water (H2O) and salt (Nacl).

For example;

Acid + base – salt + water

HCl + NaOH = NaCl + H2O


  1. Acid – HCl
  2. Base (alkali) – NaOH (sodium hydroxide)
  3. Water – H2O
  4. Salt – Nacl (sodium chloride)


Acid + base = water + salt

It mean,

HCl + NaOH = H2O + NaCl

Acid-base Neutralization

You know that hydrochloric acid and sulfuric acjd is a strong acid. for example,

Strong acid = HCl = hydrochloric acid and

Strong acid = H2SO4 = sulfuric acid.

similarly ;

Base = NaOH = sodium hydroxide where base = alkali.

And Nacl = sodium chloride = salt.

When strong acids such as, HCl or H2SO4 is react with NaOH (sodium chloride = base) then it produce salt (Nacl) and water (H2O).

  1. HCl + NaOH = NaCl + H2O
  2. H2SO4 + 2NaOH = Na2so4 + 2H2O

Neutralization reaction equation

Neutralization equations is,

Acid + base > salt + water

HCl + NaOH > NaCl + H2O

The reaction between an acid (HCl) and a base (Na0H) to create and ions compound such as salt (NaCl) and water (H2O).

Neutralization reaction example

You know that creation of both salt and water by neutralization.

Where, NaCl = sodium hydroxide = Common salt

HCl + NaOH = NaCl + H2O

You can see both salt and water is produce by neutralization.


HCl = strong acid = hydrochloric acid

NaOH = (alkali) = sodium hydroxide is main example of neutralization reaction.

Heat of neutralization

The heat of neutralization is defined as the quantity of heat is apply when one equivalent of an acid (HCl) and one quivalent of a base (NaOH) undergo a neutralization process to form water (H2O) and a salt (NaCl).


The heat of neutralization of a base amount of heat apply when 1 gram equivalent of the base is completely neutralized by a strong acid in a diliute solution.

HA + BOH > AB + H2O + 57.3 kj

Questions and answers

1. What two substances form from acid base neutralization?

Two substance form from acid base neutralization is,

  1. Water (H2O)
  2. Salt (NaCl)

Acid base neutralization reaction is,

HCl + NaOH 》 H2O + NaCl

Acid + base 》 water + salt

2. What is neutralization reaction give one example?

The best example of neutralization process is, hydrochloric acid (HCl). this is called a strong acid. In neutralization process ,when acid H+ are react with base OH- to form HOH or H2O (water).

In other word, it is combination hydrogen ions and hydroxyl ions to form water or HOH or H2O.

3. How strong are acid or base solution?

You know that water or other solution have pH is 7. If pH is less then 7 then it indicate acidic and if pH is more then pH 7 it indicate basic.

Related terms

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