Can there be a reaction between an acid and a base, and what is the acid base neutralization reactio

Not all of them can react acid + alkali - salt + water, which is called neutralization reaction, which is a kind of metathesis reaction, so there must be water, gas or precipitate in the product.

Did you know that acids react with bases.

Acid-base neutralization refers to the reaction of acids and bases to produce salts and water. For example:

hcl+naoh===nacl+h2o

Acid refers to a compound that ionizes in water and produces cations that are all hydrogen ions, HCl Hno3.

A base is a compound in which the anions produced by ionization in water are all hydroxide ions, koh naoh.

Salt refers to a compound composed of acid ions and metal cations, NaCl MgSO4.

Reaction principle: Acids and bases are ionized into freely moving anions and cations after being dissolved in water. For example, HCL (hydrochloric acid) is ionized into hydrogen ions (H+) and chloride ions (Cl-), while NaOH (caustic soda) is ionized into sodium ions (Na+) and hydroxide ions (OH-).

Hydrogen ions and hydroxide ions combine to form water that is extremely difficult to ionize, so what is left in the solution are sodium ions and chloride ions.

Sodium and chloride ions are still ionized in solution and do not combine. But the product is NaCl (salt). Therefore, the essence of the neutralization reaction is the reaction between acid and alkali to produce salt and water.

Acids react with alkalis to form water and saltsThe acid-base proton theory expresses that in chemical reactions, as long as it can give protons, it is an acid, as long as it can accept protons, it is a base, and the acid-base reaction is actually the reaction and transfer of protons between acids and bases.

The direction of its reaction is that the stronger acid and the stronger base react in the direction of the weaker acid and the weaker base, and the essence of the acid-base reaction is the reaction of two conjugated acids and bases on competing protons.

In the acid-base proton theory, the reaction expression of acid and base is HB1+B2HB2+B1, the dissociation of strong acids and the dissociation of weak acids are more suitable for non-aqueous solvents, and in different solvents, the same bases and acids exist in different forms.

Acid-base reaction equation

1.Hydrochloric acid and caustic soda react: HCl + NaOH = NaCl + H2O

2.Hydrochloric acid and potassium hydroxide reaction: HCl+Koh=KCl+H2O

3.Hydrochloric acid and copper hydroxide reaction: 2HCl+Cu(OH)2=CuCl2+2H2O

4.Hydrochloric acid and calcium hydroxide reaction: 2HCl + Ca(OH)2=CaCl2+2H2O

5.Hydrochloric acid and iron hydroxide reaction: 3HCl + Fe (OH) 3 = FeCl3 + 3H2O

6.Aluminum hydroxide drug** Hyperacidity: 3HCl + Al(OH)3 = ALCL3 + 3H2O

7.Sulfuric acid and caustic soda reaction: H2SO4 + 2NaOH = Na2SO4 + 2H2O

8.Sulfuric acid and potassium hydroxide reaction: H2SO4 + 2KOH = K2SO4 + 2H2O

9.Sulfuric acid and copper hydroxide reaction: H2SO4 + Cu(OH)2 = CuSO4 + 2H2O

10.Sulfuric acid and iron hydroxide reaction: 3H2SO4 + 2Fe(OH)3=Fe2(SO4)3+6H2O

1. Reaction with alkaline oxides:

Acid + Basic Oxide Salt + Water.

3h₂so₄+fe₂o₃=fe₂(so₄)₃3h₂o

2. Neutralization reaction with alkali.

Acid + alkali salt + water.

2hcl+ba(oh)₂=bacl₂+2h₂o

Both of these reactions are in which two compounds exchange components with each other to form two new compounds, which we call metathesis reactions.

There are certain requirements for the metathesis reaction, which requires that the reactants must be soluble in water (if there is acid, only the acid needs to be dissolved in water), and the resulting product must have gas or precipitate or water (one of them is sufficient).

Acid: Acid and acid-base indicator reaction; and alkaline reactions; and metal reactions; and metal oxides; and salt.

Alkali: alkali and acid-base indicator reaction; and acid reactions; reaction with non-metallic oxides; and salt.

Salt: salt and acid reaction; and alkaline reactions; and salt. and metal oxides;

According to the degree of ionization of acid in aqueous solution, there are strong acids and weak acids, and it is generally believed that strong acids are completely ionized in aqueous solutions, such as hydrochloric acid and nitric acid; Weak acids are partially ionized in aqueous solutions, such as acetic acid, carbonic acid.

Most of these substances are soluble in water, and a small part, such as silicic acid, is insoluble in water. An aqueous solution of an acid generally conducts electricity, and its conductive properties are related to its degree of ionization in water.

Some acids exist in the form of molecules in water and do not conduct electricity; Some acids dissociate into positive and negative ions in water, which can conduct electricity.

In the acid-base ionization theory, alkali refers to the fact that all the anions ionized in the aqueous solution are oh-; In acid-base proton theory, a base refers to a substance that can accept protons; In acid-base electron theory, a base refers to an electron donor.

Acids and bases exchange components with each other to form a reaction of salt and water.

Specific introduction: 1. The principle of neutralization reaction is that ions are ionized into free-moving anions and cations after being dissolved in water;

2. Generally speaking, neutralization reactions are exothermic reactions. However, there are many reactions that are marketed as exothermic rather than neutralization, such as the reaction in which potassium thiocyanate is oxidized to cyanide thiocyanate;

3. Put the acid-base indicator into the solution, and the color of the acid-base land pants indicator will change with the pH value of the two solutions, which is the most direct method. Common acid-base indicators include colorless phenolphthalein;

4. Generally, when the neutralization reaction is carried out, the pH of the solution will change before and after the reaction. Using pH to detect whether the neutralization reaction is taking place is the most straightforward way. PH test strips mainly include extensive test strips and precision test strips.