What substances are electrolytes in high chemistry electrolytes ?

1.Definition of electrolyte: An electrolyte is a compound that conducts electricity in an aqueous solution or in a molten state.

2.The essence of electrolyte conduction: conduction is the performance, and energy ionization is the essence.

3.The criterion for judging whether it is electrolytic: grasp the essence to see whether it can be ionized when it is melted or dissolved in water.

4.About oxides.

1) Metal oxides: are electrolytes.

For example, Na2O reacts with water when it encounters water, and it cannot be ionized in water. However, it is an ionic compound that ionizes when melted, so it is an electrolyte.

2) Non-metallic oxides: are non-electrolytes.

For example, SO3, because it reacts with water, it cannot be ionized in water, and the reason why the solution conducts electricity is not that it is ionized in the water itself, but that it is ionized by the sulfuric acid generated by its reaction with water.

In addition, SO3 is a covalent compound and cannot be ionized when melted.

Soluble in water cannot ionize soluble, so SO3 is a non-electrolyte.

Liquid SO3 is not electrically conductive.

After reacting with water, it is not SO3, but sulfuric acid, which can conduct electricity, indicating that sulfuric acid is an electrolyte.

An electrolyte is a compound that conducts electricity in an aqueous solution or in a molten state, and the electrolyte is required to be able to conduct electricity either by itself or by itself.

Liquid SO3 conducts electricity by reacting liquid SO3 with water to form sulfuric acid, not myself. In other words, it is actually sulfuric acid that conducts electricity, so liquid SO3 is not.

Note that the compound in "Electrolyte refers to a compound that conducts electricity in an aqueous solution or in a molten state". Explanation, first of all, electrolytes are a pure substance.

Liquid SO3 reacts with water to form sulfuric acid, which can conduct electricity" in "Sulfuric acid is an aqueous solution of sulfuric acid, which is a mixture.

It is sulfuric acid that conducts electricity, not SO3 conduction.

The electrolyte is sulfuric acid, not SO3

First of all, let's clarify how electrolytes are defined.

Electrolyte: A compound that conducts electricity in an aqueous solution or in a molten state.

It conducts electricity in aqueous solution, which is well understood, and can be ionized (most acid-base salts (soluble) that you know will do).

It can conduct electricity in the molten state, which also includes a large category - metal oxides and a small number of metal hydrides (there may be in the college entrance examination information questions) (metal parts).

Classification: By degree of ionization:

1) Strong electrolytes: strong acids, strong bases, active metal oxides and most salts, such as: sulfuric acid, calcium carbonate.

Sodium oxide, copper sulfate.

Wait. 2) Weak electrolytes: weak acids, weak alkalis, and a small amount of salts, such as: acetic acid, ammonia monohydrate (NH3·H2O

Lead acetate, mercuric chloride.

In addition, water is a very weak electrolyte.

Strong electrolytes: 1. Strong acids: HCl

H2SO4 sulfuric acid.

HNO3 nitric acid.

HBR hydrobromic acid.

HI hydroiodic acid.

HCO4 perchloric acid.

2. Strong alkali: NaOH

KOHBA(OH)2 barium hydroxide.

Ca(OH)2 calcium hydroxide.

3. Most salt: The salt you see in high school is all strong electrolytes.

Metal compounds: a

Oxide: calcium oxide cao

Sodium oxide Na2O

Magnesium oxide MGO

Oxidation of Al2O3

Zinc oxide. zno

Oxide iron Feo

Iron oxide Fe2O3

Copper oxide cuo

Mercury oxide HGO

Silver oxide AG2O

B. Peroxide compound: sodium peroxide Na2O2

c. Metal carbide: calcium carbide CaC2

d. Metal sulfides: calcium sulfide Cas2

Ferrous sulfide FeS2

Weak electrolyte: 1. Weak acid: H2CO3 carbonate

Sulfite H2SO3

Acetate CH3COOH

H2S hydrosulfate

Hydrofluoric acid HF silicic acid H2SiO3

Orthosilicate H3SiO4

All organic acids.

2. Weak alkali: ammonia monohydrate.

All metal hydroxide r(OH) except for strong alkalis

3. Water H2O is also a weak electrolyte.

Non-electrolyte: 1. Non-metallic oxide: carbon dioxide.

Sulfur dioxide. Carbon monoxide.

Sulphur trioxide. Nitrogen dioxide.

Nitric oxide. 2. Most organic matter: methane.

Ethanol. Cane sugar.

Except for organic acids and organic salts).

3. Non-metallic compounds: ammonia.

High chemical electrolytes: All acids, bases, salts are electrolytes. If the acid is dissolved in water and can be completely ionized, it is a strong acid.

Such as HCl, H2SO4, HNO3, HBR, Hi. If the acid is soluble in water and cannot be completely ionized, it is a weak acid. Such as carbonic acid, H2S, HCN, HF, phosphoric acid, formic acid, acetic acid, etc.

At the high school level, all organic acids are weak acids).

If the alkali is dissolved in water and can be completely ionized, it is a strong alkali. Such as KOH, NaOH, BA(OH)2, CSOH, (the alkali corresponding to the active metal is generally a strong alkali).

If the alkali is dissolved in water and cannot be completely ionized, it is a weak base. Such as the judgment of monohydrate and ammonia, calcium hydroxide (medium and strong alkali), aluminum hydroxide, zinc hydroxide, copper hydroxide, etc.

Electrolytes are all substances that are bonded by ionic bonds or polar covalent bonds. Compounds can dissociate into free-moving ions when dissolved in water or when heated. Ionic compounds can conduct electricity in aqueous solution or in the molten state; Some covalent compounds can also conduct electricity in aqueous solutions, but there are also solid electrolytes that excavate imitation slag, and their conductivity is the migration of ions in the crystal lattice.

Electrolytes are compounds that are able to conduct electricity when dissolved in an aqueous solution or in a molten state. It can be divided into strong electrolytes and weak electrolytes.

High chemical electrolytes are: all acids, bases, salts or electrolytes.

If the acid is dissolved in water and can be completely ionized, it is a strong acid. Such as sulfuric acid, hydrochloric acid, etc.

If the acid is soluble in water and cannot be completely ionized, it is a weak acid. Such as carbonic acid, formic acid, acetic acid and other bridges.

Those who are alkali-soluble are wider than water and can be completely ionized, which is a strong alkali. Such as potassium hydroxide, sodium hydroxide, etc.

If the alkali is dissolved in water and cannot be completely ionized, it is a weak base. Such as calcium hydroxide, zinc hydroxide, copper hydroxide, etc.

Salt electrolytes include sodium chloride, potassium chloride, copper chloride, etc.

Electrolytes are compounds that are sensitive to electricity that are wider than those in aqueous solution or in the molten state. It can be divided into strong electrolytes and weak electrolytes.

High chemical electrolytes are: all acids, bases, and salts are electrolytes.

If the acid is dissolved in water and can be completely ionized, it is a strong acid. Such as sulfuric acid, hydrochloric acid, etc.

If the acid is soluble in water and cannot be completely ionized, it is a weak acid. Such as carbonic acid, formic acid, acetic acid, etc.

If the alkali is dissolved in water and can be completely ionized, it is a strong alkali. Such as potassium hydroxide, sodium hydroxide, etc.

If the alkali is dissolved in water and cannot be completely ionized, it is a weak base. Such as calcium hydroxide, zinc hydroxide, bridge bright copper hydroxide, etc.

Salt electrolytes include sodium chloride, potassium chloride, copper chloride, etc.

Acids, alkalis, salts, active metal oxides.