What is the product of the reaction of acidic oxides and basic oxides

At the secondary level, the definition of acidic oxides: any oxides that can react with alkali to form salts and water (the valency of each element in the reaction process cannot be changed).

Definition of basic oxide: any oxide that can react with an acid to form salt and water (the valency of each element in the reaction process cannot be changed).

In addition to acidic oxides and basic oxides, other oxides are called"Not a salt oxide", such as H2O, CO, etc., neither react with acids nor with bases.

Acidic oxides and alkaline oxides, as long as they can react, then, after the reaction, salt will be obtained. Upstairs someone said it would spawn"Salt and water"That's wrong. Neither acidic nor basic oxides contain hydrogen and no salts can be formed!

This is the basic law of conservation of mass!

For example: CO2 + CA = CACo3

SiO2 + Cao = High temperature = Casio3 (someone upstairs said that as long as one is insoluble, it does not react, which is also wrong).

There are also likes: Na2O + CO2 = Na2CO3 etc. Lots of reactions.

What they get after the reaction is salt.

To understand the nature of reactions, you must first know the concept of the categories of matter.

Generate salt and water. There are others, some are salt, some are not. The reactants are different, the types of generation are different, and there are references, so look for them yourself. Or write a few more equations to sum it up.

In high school, if one of the two is insoluble, then it will definitely not react. The essence is usually that they react in the form of the corresponding hydrate in the presence of water, and then it is enough to delete the water on both sides of the equation.

Depending on the reactants, your formulation is too general.

Acidic oxides react with basic oxides to form salts and water.

General properties of acidic oxides:

1. Most of them can react with water to form corresponding acids (except for some oxides that cannot react with water, such as silica SiO2).

2. Reaction with alkali produces only one kind of salt and water.

3. Reaction with alkaline oxides.

Note. 1. Most of the acidic oxides are non-metallic oxides.

2. Most of the non-metallic oxides are acidic oxides.

3. Only oxygenated acids have acidic oxides.

4. Carbon monoxide, nitric oxide, and nitrogen dioxide are not acidic oxides.

5. Silica is a special acid oxide. Silica can react with hydrofluoric acid, but not with water (etching glass).

Basic oxides include active metal oxides and low-valent oxides of other metals such as Na2O, CAO, BAO and CRO and MNO. The corresponding hydrate of basic oxides is alkali.

For example, CaO reacts with water to form Ca(OH)2, and Fe2O3 reacts with water to form Fe(OH)3. Basic oxides are generally not associated with positive salts.

Basic salts (e.g., Cu2(OH)2CO3, Mg(OH)Cl) reflux, but can react with acid salts (e.g., NaHSO4).

Basic oxides are oxides that are dissolved in water and only form one type of alkali or react with acids to form only salts and water. Basic oxides are all oxides of metal elements, their alkalinity varies greatly, some are easily combined with hydration and can quickly and completely neutralize with all acidic substances.

Heavy metal oxides are only weak bases, which are insoluble in water or do not interact with water and can only neutralize with more acidic substances.

There is a transition from basic oxides to acidic oxides, i.e., amphoteric oxides (e.g. alumina).

It is both acidic and alkaline in spring.

The acid reacts with the alkaline oxide to form salts and water. Basic oxide + acid = salt + water. Strong acids react with all basic oxides. For example, the reaction of iron oxide and hydrochloric acid.

Basic oxides are all metal oxides, and metal oxides are not necessarily basic oxides, such as Mn2O7 is an acid oxide, Al2O3 is an amphoteric oxide, the oxide that can react with alkali to form salt and water is called acid oxide, and the oxide that can react with acid to form salt and water is called alkaline oxide, which can react with acid to form salt and water, and can react with alkali to form salt and water oxide is amphoteric oxide.

Alkaline oxide considerations

Note that oxides that can react with acids are not necessarily basic oxides, such as SiO2 can react with HF (hydrofluoric acid), SiO2 is an acid oxide, but not a basic oxide, SiO2 can react with HF is a characteristic of SiO2, and it has nothing to do with whether it is a basic oxide or an acid oxide.

Alkali metal oxides are not necessarily basic oxides, such as Na2O2 can react with water to form alkalis, but it is a peroxide rather than a basic oxide. Because it has oxygen in addition to producing bases, it is not a basic oxide.

The above content refers to Encyclopedia - Basic Oxides.

Acidic oxides can react with water to produce acids, and alkaline oxides can react with water to produce alkalis.

1.Sodium Oxide:

Sodium oxide, molecular weight, off-white amorphous flakes or powders, melting point 1275, boiling point 1950, density of grams per cubic centimeter. Sodium oxide is sensitive to moisture, easy to deliquescent, and violently reacts with water to form sodium hydroxide. Sodium oxide melts when dark red is red-hot and decomposes into sodium peroxide and sodium elemental at temperatures greater than 400 degrees Celsius.

2. Calcium oxide:

Calcium oxide (calcium oxide) is an inorganic compound, its chemical formula is CAO, commonly known as quicklime. The physical properties are white powder on the surface, gray-white for impurities, light yellow or gray when containing impurities, and hygroscopic.

3. Barium oxide:

Barium oxide (barium oxide) with the molecular formula Bao and molecular weight is. It is a colorless cubic crystal. Soluble in acid, insoluble in acetone and ammonia.

It reacts with water to form barium hydroxide. Barium carbonate is easily absorbed in the air and carbon dioxide is formed. Poisonous!

4. Potassium oxide:

Potassium oxide, colorless cubic crystals. Density, 350 decomposition, easy deliquescent, soluble in water and combined with hydration to form potassium hydroxide. Mainly used in the inorganic industry, it is the basic raw material for the manufacture of various potassium salts such as potassium hydroxide, potassium sulfate, potassium nitrate, potassium chlorate, potassium alum, etc.

5. Magnesium oxide:

Magnesium oxide (chemical formula: MGO) is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in nature in the form of chlorite and is the raw material for magnesium smelting.

Magnesium oxide has highly fire-resistant insulating properties. After burning at a high temperature of more than 1000 °C, it can be transformed into crystals, and when it rises to 1500 - 2000 °C, it becomes dead burned magnesium oxide (that is, the so-called magnesia) or sintered magnesium oxide.

Alkali mass dry oxide.

It refers to an oxide that is dissolved in water to form an alkali or reacts with an acid to form salt and water. At high temperatures, partially basic oxides and acidic finch or bridge oxides.

Effect to produce salt.

At high temperatures, some basic oxides and acidic oxides react to form salts: cao+siO2casio3

Some basic oxides can react directly with acidic oxides: Na2O+CO2Na2

CO31) basic oxide + acid = salt + water: Fe2

o36hcl=2fecl3

3h2o;cuo+h2

so4cuso4h2o。

2) Acidic oxygen is a fierce acid + alkali = salt + water: 2NaOH + CO2Na2CO3

h2o;2naoh+sio2

na2sio3h2o。

3) The alkaline oxide reacts with water to form the corresponding hydroxide: Na2O+H2O=2NaOH; cao+h2

o=ca(oh)2

4) Most of the acidic oxides can be directly combined with water to form oxygenated acid: SO3H2O=H2

so4so2

H2O = (reversible) H2SO3

Acidic oxides react with basic oxides to form salts CO2+MGO=MGO3 acidic oxides.

1.Reacts with water to form the corresponding acid: Song Yin rent SO3 + H2O = H2SO42

2.Reacts with alkali to form salt and water: CO2+2NaOH=Na2CO3+H2O.

3.Salt and water corresponding to the production of basic oxides: CO2 + MGO = MGC3 basic oxides.

It reacts with water to form the alkali cao+h2o==ca(oh) corresponding to the wild zhao, reacts with the acid to form a salt and water cao+h2so4==caso4+h2o reacts with an acidic oxide to form the salt mgo+CO2=mgCO3

Acidic oxides react with basic oxides to form salt Co +MGO=MGCo.

Common acid oxides include carbon dioxide CO, nitrous pentoxide N O, sulfur trioxide SO, sulfur dioxide SO, heptachlorohydride Cl O7, silicon dioxide SIO, etc., and the ** oxide cracks of the transition group elements are generally acid oxides. CO, NO, etc. are not acidic oxides or alkaline oxides, but are not salt oxides, and water is a special oxide.

The hydrate corresponding to the acid oxide is oxygenated acid, such as the hydrate corresponding to SO3 is H2SO4, the hydrate corresponding to CO2 is H2CO3, and the hydrate corresponding to SiO2 is H2SiO3, etc.

Most of the acidic oxides can be directly combined with water to form oxygenated acids, and a few acidic oxides (SiO2) cannot react directly with water. Acid oxides are generally prepared by direct oxidation of non-metals or thermal decomposition of oxygenated acids and oxytates.