Non metals react with acidic oxides to form salts and water

1. Alkali can react with some non-metal oxides to form salts and water. Carbon dioxide.

Sodium carbonate is formed with sodium hydroxide.

and water, the chemical equation of the reaction is: CO2 + 2NaOH Na2CO3 + H2O.

2. Carbon dioxide and calcium hydroxide.

Sodium calcium carbonate and water are generated, and the chemical equation of the reaction is: CO2 + Ca(OH)2 CaCO3 + H2O.

3. Sulfur trioxide reacts with sodium hydroxide to form sodium sulfate and water, and the chemical equation of the reaction is: 2NaOH + SO3 Na2SO4 + H2O.

Metal oxides include basic oxides, amphoteric oxides, acid oxides (e.g., chromium oxide, etc.), and peroxides (e.g., sodium peroxide).

Basic oxides and amphoteric oxides react with acid solutions to form salt and water, while acid metal oxides cannot react with acids or undergo redox reactions (such as lead dioxide reacts with hydrochloric acid to form chlorine, lead chloride and water), and the situation is more complicated. Sodium peroxide reacts with acid to form salt and water, as well as oxygen.

Therefore, it is correct to say that alkaline metal oxides react with acid solutions to form salts and water. 2. Not necessarily, metal oxides are divided into acidic oxides and basic oxides, only alkaline oxides react with acids. Among the metal oxides, only oxidation is acidic oxide.

In addition, metal oxides react with oxidizing acids to produce reduction products. 2. Not necessarily, there are acidic oxides in metal oxides that can react with alkalis to form salts and water.

Not necessarily reacts with acids.

But silica can react with hydrofluoric acid, and if it reacts, it is a special case, usually due to strong oxidation or strong reduction, such as H2S SO2 3S 2H2O upstairs

But silica can react with hydrofluoric acid.

The neutralization reaction of SO2+HNO3=H2SO4+NOX+H2O is fundamentally caused by the strong reductionability of -2 valence S and the strong reduction of +5 valence N, 1, yes For example:

fe3o4+8hcl==2fecl3+fecl2+4h2o

zno+2hcl==zncl2+h2o

fe2o3+6hcl==2fecl3+3h2o

feo+2hcl==fecl2+h2o

cuo+2hcl==cucl2+h2o

mgo+2hcl==mgcl2+h2o

al2o3+6hcl==2alcl3+3h2o

cao...1,

What you say in the condition: acids and basic oxides* produce salts and water.

If it belongs to an exothermic reaction, it is a neutralization reaction.

First of all, let's be clear:

Neutralization is the reaction of acid and base reaction to produce salt and water. Broadly speaking, it is the reflection of the combination of hydrogen ions in acid and hydroxide in water. The neutralization reaction is an exothermic reaction.

The heat emitted by the acid-base neutralization reaction is related to the heat of neutralization, and as long as the neutralization heat of the acid-base neutralization reaction is measured, the neutralization reaction can be an exothermic reaction. In a dilute solution, the acid and base are neutralized to form 1 mol H2O, and the heat of reaction is called the heat of neutralization. Principles of Neutralization Thermal Determination:

When the neutralization reaction occurs, due to the different strengths of the acids and bases used, there are one, two or multiple points, so the neutralization heat is different, and the reaction heat of neutralization between the one strong acid and the one strong base is as follows:

h+(aq) ＋oh－(aq)＝h2o(l)

Substituting the obtained data into the above equation can be used to calculate the heat of neutralization of the reaction. Since the emitted heat can be measured, it can be proved that the neutralization reaction is an exothermic reaction.

If you can't understand it, as long as you know that the neutralization reaction is an exothermic reaction, you can prove that the neutralization reaction is an exothermic reaction, which will only be learned in high school textbooks.

Acid + Metal Oxide = Salt + Water.

Alkali + Non-Metallic Oxide = Salt + Water.

The essence of these two types of reactions is the same, belonging to the acid-base reaction class, which is the most common type of reaction, if it belongs to the four major reaction types (compounding, decomposition, metathesis and redox), it belongs to metathesis reaction.

There is also a class of reactions in acid-base reactions: metal oxides + non-metal oxides = salts, which belong to the four major categories of reactions. , 7, metathesis reaction.

For example: 2 HCl + CuO = CuCl2 + H2OHCL provides Cl, Cuo provides Cu, exchange components, and get CuCl base + non-metallic oxide = salt + water.

This reaction, no reaction type, 2, decomposition reaction, 1, metathesis reaction 2HCl+CuO=CuCl2+H2O,1,

Summary. Instead of acid and water, what is produced is the reaction of salt and water potassium hydroxide plus carbon dioxide to produce potassium carbonate and water, and it is possible to produce potassium bicarbonate and water, the chemical reaction equation is as follows: potassium hydroxide sufficient amount:

2koh+CO2=K2CO3+H2O CO2 sufficiency: KOH+CO2=khCO3

Alkali and non-metal oxides produce salt and water, but why do potassium hydroxide and carbon dioxide produce acid and water?

Instead of acid and water, what is produced is the reaction of salt and water potassium hydroxide plus carbon dioxide to produce potassium carbonate and water, and it is possible to generate potassium bicarbonate and water, and the chemical reaction equation is as follows: potassium hydroxide sufficient: 2koh + CO2 = K2CO3 + H2o carbon dioxide adequacy:

koh+co2=khco3

Potassium hydroxide and carbon dioxide produce potassium carbonate and water.

Isn't potassium carbonate an acid.

It's salt, pro. And potassium carbonate is very alkaline.

Because it is a strong base and weak acid.

Acidic oxides meet water to form acids, and react with alkaline oxides to form alkalis when they meet water to form salts.

cao+co2=caco3

na2o+so2=na2so3

When alkali reacts with non-metal oxides, is it required that the reactants should be soluble in water?

If you react in water and the acid produced is strong enough, it can be reacted.

For example, Cu(OH)2+SO3=CuSO4+H2O

In fact, there are two reactions: H2O+SO3=H2SO4, H2SO4+Cu(OH)2=CuSO4+2H2O, and the two are superimposed to obtain the total reaction.

Remember that the acid must be strong enough.

Precipitate immediately. Because it is first CO2 and hydroxide that react to form carbonate, and carbonate and calcium ions form calcium carbonate precipitates. The hydroxide in the mixed solution cannot be identified as belonging to any of the blind substances.

It can be reacted in alkaline solution. It is difficult for this reaction to occur with insoluble alkalis. This reaction can also occur in solids with strong bases, but it is easier to do so in solution.

React with the acid first, because the neutralization reaction is the priority reaction when doing the problem.

If it is assumed that the reaction with non-metal oxides is carried out first, the resulting product will continue to react, and the reaction is incomplete, so it is considered to react with the acid first.

It does not belong to any of the four major reactive types.

Hehe, when I saw that you were a junior high school student, I often asked similar questions when I was in junior high school.

3Cu + 8Hno3 (dilute) = 3Cu (NO3) 2 + 2 No(g) + 4H2O

Cu + 4Hno3 (concentrated) = Cu (No3) 2 + 2H2O + 2 No2 (g).

3AG+4HNO3=3AGnO3+NO(G)+2H2O G: is the meaning of gas.

2Na + Cl2 = Ignition = 2NaCl

Mg+Cl2=Ignition = MgCl2

cao+so2=caso3

cao+co2=caco3

Nitric acid can be used to prepare aqua regia or to make nitrate.

Therefore, it does not belong to any of the four major reactive types.

None of them belong to the four basic types of chemical reactions; For example: CO2 + Ca(OH)2==CaCO3 (precipitation) + H2O

Carbon monoxide is not an acidic oxide, whereas carbon dioxide is.

Acidic oxides (CO2, NO2, etc.) can react with sodium hydroxide to produce corresponding salts and water.

There must be water, there must be water, the alkali can ionize OH ions, and when the spine of the auspicious god is in a molten state, it is okay, no.

Many non-metallic oxides are called "acid oxides", they can react with alkalis but not acids, on the contrary, metal oxides are mostly called "basic oxides", which can react with acids but not with alkalis, but these are not absolute, for example.

4hf+sio2===sif4+h2o

al2o3+2naoh==2naalo2+h2o

The alkali solution reacts with non-metallic oxides to form salts and water.

The condition for the reaction of alkali and non-metal oxides is that non-metal oxides can react with water to form acids; The reaction is carried out in solution.

The law of this reaction is that the valence of the reaction process remains unchanged; Alkali and non-metal oxides react to form salts and water; The acid group of the resulting salt is the acid group in which a non-metallic oxide reacts with water to form an acid.

For example: 2NaOH+CO==NAco+HO