Is silica an oxide or a salt or all of them

It is an oxide and it is an acidic oxide.

Oxide. Salt generally does not contain oxygen.

Like NACL or.

MgSO4 is also a salt because the O in it is the oxygen in the sulfate.

Silica is an oxide.

SilicaAble to work withSodium carbonateand calcium carbonate, but the reaction conditions need high temperature, and the chemical reaction equation is as follows:

1. Reaction between silica and sodium carbonate:SiO+Na Co = Na SiO+Co (Condition: High Temperature).

2. Reaction between silica and calcium carbonate:SIO+CACO = CASIO +CO (Condition: High Temperature).

Silica can react with carbonates such as sodium carbonate and calcium carbonate, but the reaction conditions require high temperatures, because CO2 is a gas, and the reaction is easy to carry out at high temperatures.

Sodium carbonate and silica react under high temperature conditions to form sodium silicate and carbon dioxide gas, and calcium carbonate and silica react under high temperature conditions to form calcium silicate and carbon dioxide gas.

In the high-temperature molten state, most substances have a lower melting point than silica. Therefore, in this state, all reactions that produce gases can occur, and the most common is sodium carbonate.

SilicaThe silicon and oxygen atoms are arranged in a long-range order to form crystalline silica, and a short-range or long-range disordered arrangement to form amorphous silica. Although the simplest silica molecular formula is SiO2, SiO2 does not represent a simple molecule, but rather the ratio of the number of silicon atoms to the number of oxygen atoms in a silicon crystal.

Pure natural silica crystal is a hard, brittle, insoluble, colorless and transparent solid, which is often used in the manufacture of optical instruments.

Silica is chemically inactive and does not react with water. Normally, cryptoic oxides do not react with acids, but silica can react with hydrofluoric acid.

The reaction produces silicon tetrafluoride and water, but does not react with other acids. It can react with basic oxides or strong bases to form salts, and it can also react with carbonates to form silicates and is used in the silicate industry. Silica is an acidic oxide that does not react with ordinary acids.

It reacts with a hot concentrated alkali solution or a molten alkali to form silicates and water. It reacts with a variety of metal oxides at high temperatures to form silicates.

Silica is inactive in nature. Fluoride and hydrogen fluoride are removed.

Outside, it is not associated with halogens, hydrogen halides, sulfuric acid, nitric acid.

and perchloric acid. The density of silica is 1723 and the boiling point is 2230. When heated to form a silicate, it melts with a strong base.

However, it is insoluble in water and can react with HF to form gaseous SIF4. Silica is widely used in the manufacture of glass, water glass.

Ceramic, enamel, refractory, aerogel felt, ferrosilicon, molding sand, silicon and cement.

Silica was also used to make glaze cracks and the carcass of porcelain. Generally, stone is mainly made of silica and calcium carbonate.

Compose. Silica is often added to food to prevent clumping of powdered foods. It is mainly used in products such as powdered oil, solid spices and solid wine, such as milk powder. Silica is harmful to the human body. Long-term exposure can lead to silicosis.

It is a respiratory disease. This is more common in dusty workplaces. It is safe to add a small amount of silica to leather food.

Sodium carbonate, which is the most common vertical oak substance, can react with silica, and will produce high-temperature gases, and can also react with materials made of glass, and the reaction is very obvious.

Silica can react with sulfates, carbonates, nitrates, calciums and natriates.

Silica and silicate are two different compounds.

SiO2 is an inorganic compound, also known as silica, which is a compound composed of silicon and slag-modified oxygen elements. It is a white or colorless crystal that is commonly found in nature such as quartz, glass, sand, etc. Silica has high chemical and thermal stability, and is widely used in the manufacture of glass, ceramics, optical glass, semiconductor devices and other fields in industry.

Silicates are a class of chemical compounds that are made up of silicon, oxygen, and other elements such as calcium, magnesium, aluminum, etc. Silicates can be divided into two types: elemental silicic acids, such as trapped salts and complex silicates. Elemental silicates (such as calcium silicate, magnesium silicate, etc.) contain only silicon, oxygen, and one metal element, while complex silicates (such as feldspar, mica, etc.) contain a variety of metal elements.

Silicates are widely found in nature, such as rocks, minerals, soils, etc. Silicates are also the main ingredient in many common building materials.

In conclusion, silica is a compound of silicon and oxygen, whereas silicate is a compound made up of silicon, oxygen, and other elements.

Silica isAcidic oxides, mainly its ability to react with alkali to produce salts and water.

Silica is Baiqiling carbon black, also known as hydrated silica, is a white, non-toxic, amorphous fine powder, with porosity, high dispersion, light weight, good chemical stability, high temperature resistance, non-combustion and good electrical insulation and other excellent properties.

The nature of silica is not active, it is not compatible with the removal of fluoride and hydrogen fluoride.

other halogens.

Hydrogen halide as well as sulfuric acid and nitric acid.

Perchloric acid action (except for hot concentrated phosphoric acid).

Uses of silica

High-purity silica is crystal, which can be used to prepare optical instruments, lenses, glasses, etc., and poor quality can be used to prepare wine glasses, fruit plates, etc., because silica is resistant to high temperatures, and can also be used as cookware and coffee sets.

Low-purity silica can be used as glass, silica is an important component in the manufacture of glass, quartz glass, water glass, light guide and fiber electronics industry, optical instruments, crafts and refractory materials are important materials for scientific research.

Silica is crystal when it is close to perfection, silica is agate when it is dehydrated, and the colloidal body containing water in silica becomes opal when it solidifies.

When the silica grains are smaller than a few microns, chalcedony is formed.

Herald stones, secondary quartzite.

In life, silica can be used for egg white, powdered sugar, milk powder, and cobimo powder.

Cocoa butter, plant-based powder, instant coffee, decoction powder, etc.

The above content reference: Encyclopedia - Silica.