Carbon dioxide and calcium oxide do not react in the end

This reaction is more difficult to react at room temperature, but it can be reacted if it is heated, but the heating temperature should not be too high, otherwise the generated calcium carbonate will decompose.

It is easy to react if there is water, but since calcium oxide can react with water to form calcium hydroxide, if there is water, carbon dioxide is actually reacting with calcium hydroxide, not calcium oxide.

I remember that when I took the high school entrance examination, there was a reaction between calcium oxide and carbon dioxide to form calcium carbonate under heated conditions.

That's when it's reacted at high temperatures and pressures. When it comes to reaction propensity and reaction rate in college, the reaction tendency of the reaction you talk about is very thorough, but the reaction rate of the reaction is extremely slow. That is to say, if left at room temperature for an infinite time, it will react completely, but in reality, its reaction part is extremely small in our limited time.

Therefore, it can be considered that it does not react at room temperature and pressure.

Hehe, I hope it helps.

React. The so-called reaction does not mean taking a ton of something and mixing it together, and as a result, there is not a single gram of reactant left.

To give a more rational statement, calcium carbonate decomposition requires high temperature, which proves that the enthalpy change of this reaction is greater than zero, so the enthalpy change of the reverse reaction is less than zero. I calculated that the Gibbs free energy of this reaction at 298k is thermodynamically reactive.

Kinetically, the rate constant of this reaction is small, so the reaction is slow to home. However, this does not affect the conclusions, they are always reactive.

In the air, calcium oxide absorbs moisture and then reacts with carbon dioxide.

The series of heating upstairs is actually wrong, for this reaction, the heating will only increase the Gibbs free energy, which is not conducive to the reaction.

The above answers are all wrong!

If you only investigate the anti-reaction, the answer is reaction, and the reason is as you said.

But! After the reaction of calcium oxide with carbon dioxide, calcium carbonate is further reacted with calcium oxide, resulting in an incomplete and incomplete reaction. In experiments, this kind of reaction is called passivation reaction, that is, it is the same reason that calcium hydroxide cannot react with sulfuric acid to produce carbon dioxide.

It can react and maintain a certain temperature and pressure.

It is easier to proceed if there is a small amount of water to initiate the reaction.

Calcium oxide is a solid that cannot react directly with carbon dioxide"shi is incorrect, the actual solid can react.

However, the pressure should be high and the temperature should be appropriate.

The gas-solid reaction contact is not sufficient, and the calcium hydroxide in the solution is easy to react with carbon dioxide in full contact.

Yes, it's just as slow and slow as iron rusts in oxygen... Slow response.

Calcium oxide and carbon dioxide are heated to form calcium carbonate.

React. Calcium oxide reacts with carbon dioxide at high temperature, and the reaction equation is: cao + co = caco.

The essence of the reaction is that calcium oxide and water first react to form calcium hydroxide, and then calcium hydroxide reacts with carbon dioxide to form calcium carbonate.

and water, the two equations are contracted, and the water is reduced. But without water, the reaction would not have taken place.

Calcium oxide is a basic oxide that is sensitive to moisture. It easily absorbs carbon dioxide and moisture from the air. It reacts with water to form calcium hydroxide and produces a lot of heat, which is corrosive.

At room temperature, calcium oxide reacts not only with carbon dioxide, but also with water, ethanol (alcohol), acids and most acidic oxides, so calcium oxide is often used as a desiccant.

But the essence of these reactions is that calcium oxide and water react first to form calcium hydroxide, and then calcium hydroxide reacts with carbon dioxide to form calcium carbonate and water. But without water, the reaction would not have taken place.

You can also think of it this way, the density of the gas varies greatly with temperature, calcium carbonate will not decompose until the temperature exceeds 900, and the carbon dioxide density generated at this time is small compared to the helium at room temperature, so the lifetime achievement runs to the top of the blast furnace, and the pipe at the top will extract most of the carbon dioxide generated, so it will hardly react. If the carbon dioxide reacts with calcium oxide at this time, the resulting calcium carbonate will decompose until the heating is stopped or most of the gas has run away, so the reaction is meaningful.

Yes, calcium oxide (CAO) can react with carbon dioxide (CO2). This reaction is called the carbonization reaction of limestone, and it is also the basic principle of calcining limestone to produce quicklime.

The reaction equation is as follows:

cao + co2 caco3

In this reaction, calcium oxide reacts with carbon dioxide to form calcium carbonate (CaCO3), which is commonly known as limestone. This reaction is an endothermic reaction that requires energy to be supplied in order to start.

This reaction is very important in many applications, such as the carbonization of limestone in cement production, which is one of the main steps in the production of cement. In addition, this reaction also has certain application value in the field of environmental protection and chemical engineering.

Under normal conditions, it can not be directly reacted, calcium carbonate can be decomposed into calcium oxide and carbon dioxide under high temperature conditions, the reaction is irreversible, but the calcium oxide is dissolved in water to form calcium hydroxide, and calcium hydroxide absorbs carbon dioxide into calcium carbonate!

Yes, calcium oxide (CAO) reacts with carbon dioxide (CO2). This reaction is known as the basic carbonization reaction and can usually be expressed by the following equation:

cao + co2 ->caco3

In this reaction, calcium oxide reacts with carbon dioxide to form calcium carbonate (CaCO3). Calcium carbonate is a white solid that is insoluble in water at room temperature.

This reaction plays an important role in many applications, such as limestone desulfurization for environmental remediation and industrial processes. By reacting with carbon dioxide, calcium oxide can be converted into calcium carbonate and fixes carbon dioxide in a solid, helping to reduce greenhouse gas emissions in the atmosphere.

Sodium carbonate reacts with calcium hydroxide.

Calcium oxide reacts with carbon dioxide at high temperature, and the reaction equation is: cao + co = caco.

The essence of the reaction is that calcium oxide and water react first to form calcium hydroxide, and then calcium hydroxide reacts with carbon dioxide to form calcium carbonate and water. But without water, the reaction would not have taken place.

Calcium oxide is a basic oxide that is sensitive to moisture. It easily absorbs carbon dioxide and moisture from the air. It reacts with water to form calcium hydroxide and produces a lot of heat, which is corrosive.

It depends on the temperature. The lower the temperature, the more inclined it is to synthesize to form CaCO3; The higher the temperature, the more dominant the reverse reaction, that is, the reaction of CaCO3 decomposition to generate CaO and Co2.

Non-reactive calcium carbonate decomposes into calcium oxide and carbon dioxide at high temperatures.

Calcium oxide and carbon dioxide.

React at high temperature, the reaction equation is: cao+co=caco.

The essence of the reaction is that calcium oxide and water react first to form calcium hydroxide.

The calcium hydroxide then reacts with carbon dioxide to form calcium carbonate.

and water, the two equations are contracted, and the water is reduced. But without water, the reaction would not have taken place.

In the production process of ammonia, hydrogen and synthetic ammonia, there is often a decarburization (i.e., removal of carbon dioxide in the gas mixture), so that the carbon dioxide in the mixed gas can be absorbed under pressure and heated and desorbed under reduced pressure to obtain high-purity carbon dioxide gas.

You're not sure the answer just by asking questions, right? Let me tell you: calcium oxide does not react with carbon dioxide at high temperatures, but reacts with silica to form calcium silicate; Carbon monoxide reacts with oxygen in iron oxide to produce carbon dioxide, which reduces iron ore to iron.

It's impossible to get rid of high school because CaCO3, which is calcium carbonate, produces calcium oxide and carbon dioxide after high temperatures.

Carbon dioxide and calcium oxide are difficult to react when dry, but they do when there is water. Water acts as a medium in these reactions. Water can be combined with carbon dioxide to form carbonic acid, which reacts with calcium oxide to form calcium hydroxide, in which case a reaction occurs.

Therefore, in humid air, the two will react, and as for whether calcium carbonate or calcium bicarbonate is generated, it depends on which substance is excessive.

The reaction equation of carbon dioxide and calcium oxide is: cao + co = caco. The essence of the reaction is that the oxidized calcium and water react first to form calcium hydroxide, and then the calcium hydroxide reacts with carbon dioxide to form calcium carbonate and water.

But without water, the reaction would not have taken place.