What is the mantra for distinguishing electrolytes from non electrolytes

Distinguish between electrolytes and electrolytesNon-electrolyteThe mantra is as follows: livelyMetal oxidesIt is an electrolyte, and the electrolyte is soluble in water. Here's how to distinguish it:

1) Look at the type: if it is a mixture or element, it is not an electrolyte, nor is it a non-electrolyte.

2) Look at the specific substances: generally active metal oxides are electrolytes, non-metallic oxides are non-electrolytes, acids, alkalis, salts and other compounds are electrolytes, and most organic compounds are non-electrolytes and ammonia.

It is a non-electrolyte, monohydrate and ammonia are electrolytes.

3) From the perspective of whether it is ionized by itself: the electrolyte is dissolved in water or molten state.

Some non-electrolytes such as NH3 and CO2 can also conduct electricity when dissolved in water, but they are not ions produced by ionization.

Electrolyte solutionFactors influencing electrical conductivity

1) The conductivity of the electrolyte solution is related to the concentration of freely moving ions in the solution and the amount of charge carried by the ions.

2) To judge whether the electrolyte conducts electricity, the key is to see whether the electrolyte is ionized to produce free-moving ions, and also to see the concentration of ions produced by ionization, such as the solubility of CaCO3 in water.

It is very small, and the concentration of ions produced by ionization in water is very small, so it is considered that its aqueous solution is not conductive.

It is the best and accurate way to determine whether it is an electrolyte or a non-electrolyte according to the structure of the substance.

Electrolytes include ionic or strongly polar covalent compounds. Non-electrolytes include weakly polar or non-polar covalent compounds. The aqueous solution of electrolytes conducts electricity because the electrolyte can be dissociated into ions.

As for whether a substance can be ionized in water, it is determined by its structure. Therefore, the identification of electrolytes from non-electrolytes by the structure of matter is the essence of the problem. Non-electrolytes cannot ionize ions in water.

Electrolytes Note:

During an acute episode of diarrhoea, the most important thing at this time is to maintain the balance of water and electrolytes, and rehydration salts can be taken appropriately. Drink more water and porridge in your diet and reduce the intake of fried foods. According to experts, acute diarrhea is often accompanied by inflammation, at this time, the permeability of the intestinal wall increases, if you eat high-protein foods such as shrimp, crab, eggs, etc., it is easy to increase the risk of sensitization, and if you ingest fried and fried foods with high fat content, it will also aggravate the symptoms of diarrhea.

Judgment formula for electrolyte strength: Compounds with ionic bonds and strong polar bonds are strong electrolytes; Salts, strong bases, and strong acids are strong electrolytes; Compounds with weakly polar covalent bonds are weak electrolytes; Weak acids and bases are weak electrolytes.

Distinguish between strong and weak electrolytes

1. Melt or dissolve.

2. It can conduct electricity.

3. Compounds.

The strength and weakness of electrolytes can be judged from the following three aspects:

1. Degree of ionization.

2. Chemical bonds.

3. Compound genus.

About electrolytes and non-electrolyte exceptions.

Some substances that can conduct electricity, such as copper, aluminum, iron, etc., are not electrolytes. Because they are not electrically conductive compounds, they are elemental and do not meet the definition of electrolyte. Electrolytes are compounds that are capable of conducting electricity in an aqueous solution or in a molten state, such as acids, bases, and salts.

Compounds that cannot conduct electricity under the above circumstances are called non-electrolytes, such as sucrose and other substances.

Non-metallic oxides they are covalent compounds that do not conduct electricity in their liquid state, so they are not electrolytes. Some oxides are not electrolytes even if they conduct electricity in aqueous solutions. What conducts electricity in the solution is not the original oxide, such as SO2 itself cannot be ionized, but it reacts with water to form sulfurous acid, which is the electrolyte.

The formula for judging electrolytes is as follows, 1. Salts, strong alkalis, and strong acids are strong electrolytes. 2. Weak acids and bases are weak electrolytes. 3. Compounds with weakly polar covalent bonds are weak electrolytes. 4. Compounds with ionic bonds and strong polar bonds are strong electrolytes.

In summary, strong and weak electrolytes can be judged from three aspects: ionization degree, chemical bond, and compound genus, and in addition, the three elements that distinguish strong and weak electrolytes are melting, electrical conductivity, and compounds.

Electrolytes generally refer to compounds that are dissolved in aqueous solution or can conduct electricity in the molten state, and are divided into two categories: strong electrolytes and weak electrolytes according to the degree of ionization, and almost all of them are ionized strong electrolytes.

Strong electrolytes include active metal oxides, sulfuric acid, calcium carbonate, copper sulfate and other substances, weak electrolytes include a small amount of salt, acetic acid, ammonia monohydrate, lead acetate, mercuric chloride and other substances, in addition, water is extremely weak electrolyze.