Chemistry What is Electrolytic Reaction? Detailed!

The electrode reaction is not a chemical reaction equation in the true sense, but only indicates the gain and loss of electrons and the change of matter at one pole in the galvanic cell or electrolytic cell.

The point solution reaction is a general reaction equation that summarizes the sum of the reactions of the two electrodes of the electrolytic cell and can reflect the change of the substance.

For example: electrolysis of water, electrode reaction: anode.

2h2o-4e=4h+o2

Cathode. 2h+2e=h2

Whereas, the electrolysis reaction of electrolyzed water is 2H2O = (energized) = 2H2 + O2

The oxidation-reduction reaction that occurs on the electrode is applied to the aqueous solution of the electrolyte. For example: 2H20 + 2CuS04 = Power on = 2H2S04 + 2Cu + 02

In an electrolyzer, direct current passes through the electrode and electrolyte, and an electrochemical reaction occurs at the interface where the two come into contact to prepare the desired product.

Electrolysis is the process of passing an electric current through an electrolyte solution or molten substance, (also known as electrolyte), causing redox reactions on the cathode and anode, and the electrochemical battery can undergo electrolysis when an external voltage is applied.

The process by which an electric current passes through a substance and causes a chemical change. Chemical change is the process by which a substance loses or gains electrons (oxidation or reduction). The electrolysis process is carried out in an electrolytic cell.

The electrolytic cell consists of two electrodes, one and two electrodes, submerged in a solution containing positive and negative ions, respectively. The current flows into the negative electrode (cathode), and the positively charged positive ions in the solution migrate to the cathode and combine with the electrons to become neutral elements or molecules; The negatively charged negative ions migrate to the other electrode (anode), donating electrons, becoming neutral elements or molecules.

The essence of electrolysis: the electrolyte dissolves in water after it is in the water molecules.

Under the action of the cation, the cation and cation are separated from the crystal surface and all ionized into the free-moving water sparrow branch auspicious anion and hydrated cation.

The principle is that the current is passed through the electrolyte solution and causes a redox reaction at the cathode and anode of the skin.

process.

Water electrolysis is a decomposition reaction in which hydrogen (H2) is formed at the cathode through reduced water when the electrolysis beam is passed through water (H2O). At the anode, oxygen (O2) is formed by oxidizing water, and hydrogen is produced about twice as much as oxygen, and electrolysis of water is the next generation of hydrogen fuel production method to replace steam reforming to produce hydrogen.

Electrolysis of water. Electrolyzed water usually refers to the product produced by the electrolysis of water containing salt (such as sodium sulfate, table salt is not allowed, chlorine gas is generated). The electrolyzed water itself is neutral, and other ions can be added to the reed, or it can be separated by a semi-permeable membrane to produce water with both properties.

One of them is alkaline ionized water and the other is acidic ionized water. Electrolyzed water with sodium chloride as the electrolyte contained in water will contain sodium hydroxide, hypochlorous acid and sodium hypochlorite after electrolysis.

Basic Reaction TypesThe basic reaction types are chemical reaction, decomposition reaction, metathesis reaction, displacement reaction, other types, etc., while oxidation reaction and reduction reaction do not belong to the basic reaction type, and neutralization reaction belongs to the special case of metathesis reaction.

1. The key to judging the product of electrolysis is to remember the discharge sequence, when the anode is active metal, the metal is oxidized.

2. When the anode is an inert electrode, the anion discharge sequence is iodine ion, bromine ion, chloride ion, hydroxide ion, oxygen-containing free acid ion, and the products are I2, br2, cl2, and o2 respectively.

3. The cathode itself will not participate in the electrode reaction, and the discharge order of the cation on the cathode mountain is reversed by the metal activity order table, such as the copper ion discharge on the cathode of the electrolytic copper sulfate solution to obtain copper, and the electrolysis of the NaCl solution to obtain hydrogen on the cathode.