What does lime water with carbon dioxide, carbon dioxide plus clarified lime water become?

Ca(OH)2+CO2=CaCO3 (precipitation) + H2O2CaCO3+CO2+2H2O=2Ca2+ +4(HCO3)- The separation is above, and the synthesis of one is the bottom:

ca(oh)2+2co2=ca2+ +2(hco3)-

If an excess of CO2 is introduced, then the reaction that occurs is Ca(OH2)+2CO2=Ca(HCO3)2, and if it is an appropriate amount of CO2, then the reaction that occurs is Ca(OH)2+CO2=CaCO3 +H2O

Because of the excess CO2, the excess CO2 reacts with CaCO3 and water to form calcium bicarbonate.

The lime water becomes turbid.

Lime water is restored to clarification.

The clarified lime water becomes turbid: Ca(OH)2 + CO2 = CaCO3 + H2O.

After turbidity, the amount of carbon dioxide will become clear: CaCO3 + CO2 + H2O = Ca(HCO3)2.

Calcium carbonate precipitate and water are generated. Carbon dioxide (carbon dioxide), a carbon oxide, the chemical formula is CO2, the chemical formula is, at room temperature and pressure, it is a colorless and odorless or colorless and odorless gas with a slightly sour aqueous solution, it is also a common greenhouse gas, and one of the components of air (accounting for the total volume of the atmosphere.

In terms of physical properties, carbon dioxide has a melting point of a boiling point of being denser than air (under standard conditions) and is soluble in water. In terms of chemical properties, carbon dioxide is chemically inactive, has high thermal stability (only decomposition in 2000), cannot be burned, and usually does not support combustion, it belongs to acid oxides, has the general properties of acid oxides, and is an acid anhydride of carbonic acid because it reacts with water to form carbonic acid.

Calcium carbonate is an inorganic compound with the chemical formula CACO, commonly known as limestone, limestone, stone powder, etc. Calcium carbonate is alkaline and basically insoluble in water and soluble in hydrochloric acid. It is one of the most common substances on earth, found in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also the main component of the bones or shells of some animals.

Calcium carbonate is also an important building material and has a wide range of industrial uses.

A sufficient amount of carbon dioxide will make the clarified lime water turbid (generating insoluble calcium carbonate), and an excess of lime water will make the turbid lime water clear again (generating soluble calcium bicarbonate).

It depends on the amount of carbon dioxide, and when carbon dioxide is insufficient, the lime water becomes turbid.

When there is an excess of carbon dioxide, the lime water becomes clearer.

A small amount of CO2

Cleared lime water is introduced and becomes turbid, Ca(OH)2+CO2.= CaCO3 + H2O excess CO2

Clarified lime water is introduced, first turbidity and then clarification, and the total reaction is Ca(OH)2 2CO2 Ca(HCO3)2

At the beginning, it is the formation of precipitation, and the chemical equation is: CO2 + Ca(OH)2==CaCO3 + H2O

When the CO2 is sufficient, the precipitate disappears again, and the chemical equation is: CaCO3+H2O

co2==ca(hco3)2

If there is a small amount of carbon dioxide, the substance is calcium carbonate [insoluble].

If there is an excess of carbon dioxide, calcium bicarbonate is formed

The question of overdose and overdose is at stake here.

Do you understand.

Different concentrations of carbon dioxide.

The chemical equation for reacting with lime water is different. The chemical equation for the reaction of a small amount of carbon dioxide and lime water is CO2 + Ca(OH)2 = CaCO3 + H2O; If the concentration of carbon dioxide is too high, carbon dioxide will continue to react with CaCO3 with the chemical equation CaCO3 + H2O + CO2 = Ca(HCO3)2, and the total equation is 2CO2 + Ca(OH)2=Ca(HCO3)2.

What is lime waterThe main component of lime water is calcium hydroxide.

That is, CA (OH) is a delicate white powder, slightly soluble in collapsed branches and trembling water, insoluble in alcohol, strong alkaline, and has a clump and corrosive effect on **, fabrics, utensils and other substances. Lime has a certain bactericidal and insecticidal effect, which can kill overwintering fungi, bacteria and pests. According to quicklime lapping.

It reacts with water to form calcium hydroxide, and calcium hydroxide solution can be obtained.

Turbid lime water is calcium hydroxide in lime water that reacts with carbon dioxide to produce precipitation in civil engineering.

It has a wide range of applications. In addition, lime water can also be used for live myeloidotomy, apical inductionplasty, capping the pulp, modern root canals**.

lime water and carbon dioxide.

Chemical equation for reaction:

1. A small amount of carbon dioxide:

CO + CA (OH) CA + H o When the carbon dioxide is small, carbon dioxide is only with calcium hydroxide.

The reaction produces calcium carbonate.

precipitation, so as the carbon dioxide reacts only with calcium hydroxide, the solution gradually becomes cloudy.

2. Excess carbon dioxide:

CO +Ca(OH) Caco +H OCO +CACO +H O Ca(HCO) When there is an excess of carbon dioxide, the carbon dioxide reacts with calcium hydroxide first, and when the calcium hydroxide reaction is complete, the excess carbon dioxide continues to react with calcium carbonate.

CO2 is less sold Huaichang loss and the amount of Ming accompaniment: CO2 + CA (OH)2=CAC3 +H2O.

CO2 excess: CO2 + H2O + CaCO3 = Ca (HCO3)2.

<> lime water reacts with carbon dioxide to produce calcium carbonate precipitate and water. This reaction principle is mainly used in the construction industry. If carbon dioxide is introduced, the turbid lime water will become clear again, because the excess carbon dioxide will react with calcium carbonate and water to form soluble calcium bicarbonate.

Clarified lime water refers to a dilute solution of calcium hydroxide, while turbid lime water refers to an aqueous solution of calcium carbonate and calcium hydroxide.

The function of lime water: adding clarified lime water to the rice shrimp is mainly to make the rice milk coagulate and smooth, increase the natural fragrance and sweetness of the rice shrimp, promote the richness of the taste, change the nature of the food, make it change from acidic food to alkaline food, and become a low-calorie healthy food. In addition, lime water also has the effect of disinfection and sterilization, as a safe and environmentally friendly low-cost food additive, there is no substitute.

Lime water is also widely used in laboratories to detect carbon dioxide, and to pass a colorless and odorless gas into clear lime water, if the solution becomes turbid, it indicates that the gas contains carbon dioxide.

Chemical equation for the reaction of lime water and carbon dioxide:

1. A small amount of carbon dioxide:

CO + Ca(OH) Caco +H o When carbon dioxide is small, carbon dioxide only reacts with calcium hydroxide to form calcium carbonate precipitate, so as carbon dioxide only reacts with calcium hydroxide, the solution will gradually become turbid.

2. Excess carbon dioxide:

CO +Ca(OH) Caco +H OCO +CACO +H O Ca(HCO) When there is an excess of carbon dioxide, the carbon dioxide reacts with calcium hydroxide first, and when the calcium hydroxide reaction is complete, the excess carbon dioxide continues to react with calcium carbonate.

Mr. Calcium carbonate and water, when carbon dioxide is excessive, calcium bicarbonate will be generated, 6, calcium carbonate + water, 2, the composition of lime water is Ca(OH)2, and carbon dioxide (in water can be understood as H2CO3 carbonate) reaction can generate calcium carbonate CaCO3, calcium bicarbonate CaHCO3 and H2O,2, the essence is CO2 and Ca(OH)2 reaction, to generate CaCO3 and water, 2, calcium carbonate and water, 1, water and insoluble calcium carbonate.

co2+ca（oh）2-=caco3+h2o,1,

Carbon dioxide and lime water reaction, detailed below:

1. Introduction to chemical reactions:

1. In the case of a small amount of carbon dioxide: CO + CA (OH) CA + H O, when the carbon dioxide is small, the carbon dioxide only reacts with calcium hydroxide to form calcium carbonate precipitation, so as the carbon dioxide only reacts with calcium hydroxide, the solution will gradually become turbid.

2. Excess carbon dioxide: CO + CA (OH) CA + H O, CO + CACO + h o CA (HCO) When there is an excess of carbon dioxide, carbon dioxide reacts with calcium hydroxide first, and when the calcium hydroxide reaction is complete, the excess carbon dioxide continues to react with calcium carbonate.

2. Lime water calcium hydroxide:

1. Calcium hydroxide is an inorganic compound, with the chemical formula Ca(OH), commonly known as hydrated lime or slaked lime. The molecular weight of calcium hydroxide is 74, the density is g ml, the melting point is 580, and the boiling point is 2850. The appearance is a white powdery solid.

2. Calcium hydroxide is a delicate white powder at room temperature, slightly soluble in water, and its clear aqueous solution is commonly known as clarified lime water, and the emulsion suspension composed of water is called lime milk. And the degree of solvency decreases with the increase of temperature. Insoluble in alcohol, soluble in ammonium bond salt, glycerol, can react with acid to generate the corresponding calcium salt.

3. Calcium hydroxide is a strong alkali, which has a corrosive effect on ** and fabrics. The purple litmus test is blue when it meets calcium hydroxide, and the colorless phenolphthalein solution is red when it meets calcium hydroxide.