Please check the information to find out what are the gases with similar properties to carbon dioxid

It is understood that gases with similar properties to carbon dioxide are sulfur dioxide.

are all acidic gases.

1.Normally, SO2 and CO2 are colorless gases.

and CO2 are both acidic oxides, which can form unstable diacids when dissolved in water, which are H2SO3 and H2CO3, respectively, so they have the general properties of acidic oxides.

so2+h2oh2so3 co2+h2oh2co3

If it can react with Ca(OH)2 solution, CaCO3 and CaSO3 that are insoluble in water can be formed in small amounts, respectively. In excess, Ca(HCO3)2 and CA(HSO3)2, which are easily soluble in water, are generated, respectivelyTherefore, they cannot be identified with clarified lime water.

co2+ca(oh)2caco3↓+h2o co2+caco3+h2oca(hco3)2

so2+ca(oh)2caso3↓+h2o so2+caso3+h2oca(hso3)2

3.When SO2 and CO2 gases are prepared in the laboratory, they are reacted with strong acids with corresponding oxygenates. Reaction Equation:

na2so3+h2so4na2so4+so2↑+h2o caco3+2hclcacl2+co2↑+h2o

4.Both SO2 and CO2 are collected in the laboratory by upward air exhaust method, and neither can be drained.

and CO2 do not react with concentrated H2SO4, and can be dried with concentrated H2SO4.

and CO2 are denser than air. Under standard conditions, the density of SO2 is G3;The density of CO2 is 3 g cm3.

7so2.and CO2 are both non-electrolytes.

Solubility of +4-valent oxygenates corresponding to CO2. Except for potassium, sodium, and ammonium salts, which are easily soluble in water, and magnesium salts that are slightly soluble in water, other salts are insoluble in water or do not exist in solution.

Similarities and differences in the properties of sulfur dioxide and carbon dioxide:

1. Similarities 1All are acidic oxides, which react with water to form acids. 2.

Separately into the clarified lime water, it is dissolved after precipitation. 3.No precipitation was produced when the BAC L2 solution was introduced.

Bars are combustible in both gases.

Second, the difference point is toxic, it is a polar molecule. CO2 is non-toxic and is a non-polar molecule. There are both oxidizing and reducing properties, as well as bleaching, CO2 only has weak oxidation, neither reducing nor bleaching.

and CO2 were introduced into BA(NO3)2 solution, SO2 was introduced into a precipitated solution, and CO2 was introduced into a non-precipitated solution. Ba(NO3)2+3SO2+2H2O BASO4 +2NO+2H2SO4SO2 and CO2 were introduced into the bleach solution, and the precipitation was generated by the introduction of SO2, and the precipitation was generated by the introduction of CO2 and then dissolved. 2so2+ca(c lo)2+2h2o caso4↓+2hc l+h2so4co2+ca(c lo)2+h2o caco3↓+2hc lo;CO2+CaCO3+H2O Ca(HCO3) and CO2 reacted with Na2O2, respectively, both of which were redox reactions, but the products were different.

Carbon dioxide is a colorless, tasteless and odorless gas, and its main characteristics include stability, greater density than air, insoluble in water, non-combustible, and non-life-supporting combustion. There are several gases that match these characteristics:

1.Inert gases: Noble gases such as nitrogen and helium, which are not prone to chemical reactions, are also colorless, odorless, and odorless. They are abundant in the atmosphere and are important for our ecosystems and health.

2.Argon: Argon is one of the few stable gases that is less soluble in water like carbon dioxide and is denser than air. Due to its stability and electroluminescent properties, argon is often used in electrical equipment and lighting fixtures.

3.Nitric oxide: Nitric oxide is a colorless gas with a density smaller than air and insoluble in water, which can be used to treat waste gas and liquid disturbances and catalytic reactions.

In addition, there are gases such as methane, ethane, and ethylene, which are denser than air and less flammable, but their chemical properties are more reactive and are not the perfect match for carbon dioxide.

The properties of carbon dioxide gas are as follows:

1. Physical properties of carbon dioxide: carbon dioxide is a colorless and odorless gas at room temperature and pressure, soluble in most organic solvents such as water and hydrocarbons.

2. Chemical properties of carbon dioxide: carbon dioxide is one of the carbons, which is an inorganic substance, non-flammable, usually does not support combustion, and is non-toxic at low concentrations.

It is also the acid anhydride of carbonic acid, which belongs to acidic oxides, and has the general properties of acidic oxides, in which the valency of carbon elements is +4 valence, which is in the most advanced state of carbon elements, so carbon dioxide has oxidation and no reduction, but the oxidation is not strong.

3. Carbon dioxide can generally be prepared by calcining limestone at high temperature or by the reaction of limestone and dilute hydrochloric acid, and is mainly used in refrigerating perishable food (solid), as a refrigerant (liquid), making carbonized soft drinks (gaseous) and solvents for homogeneous reaction (supercritical state).

Colorless and odorless.

Slightly soluble in water oxidation.

Colorless, odorless, toxic gas.

Introduction: Many people have heard that carbon dioxide is a toxic gas, but many people will say that carbon dioxide is a gas with special properties, why do they say that? What are the special properties of carbon dioxide?

Let's take a look at some of the special properties of carbon dioxide.

<>First of all, we need to know that carbon dioxide is a special gas, it is a non-metallic element, and its chemical properties are relatively numerous. Carbon dioxide is a colorless, tasteless, odorless, and odorless liquid, and it is a chemical element. Carbon dioxide is a chemical conjugate made up of two oxygen atoms and one carbon atom.

It is usually a liquid, but at high temperatures and at high pressures, it can become a liquid, shrinking into a liquid. It will have some physical properties, it is usually a colorless and odorless gas, so it may also become liquid and solid under certain conditions, so many people know that a name for carbon dioxide is dry ice.

Dry ice has the function of rainfall, when there is a drought in many places, many people will use dry ice to rain, at this time it is still better for the figure of agriculture, and can take care of the growth of some crops. And we have to know that the density of carbon dioxide is greater than that of air, it cannot hold water, and it will also have some chemical properties. The chemical properties of carbon dioxide are not normally combustible for combustion, so he is also non-combustible as well.

He can react with water, and he also uses lime water reactions and some sodium hydroxide reactions. So we know that carbon dioxide is also a special substance, although it will harm people's health, but it may also bring some convenience to life, and it is very good to use some of its properties to help some agricultural production and life. In daily life, you will find that many people will use some of the properties of carbon dioxide to help the growth of some crops.

Carbon dioxide is indeed a gas with special properties, and the human body can also emit carbon dioxide. Because carbon dioxide is the main culprit of global warming.

It is a gas with special properties, because carbon dioxide is denser than air, it can be dissolved in water, and this gas can also be incorporated into the production of semiconductors.

The nature of carbon dioxide is very unique, and carbon dioxide will be emitted in the production and life of human beings. Carbon dioxide is the number one greenhouse gas. It can cause damage to the environment.

1. Carbon dioxide is a common compound in Tancha air, which is composed of two oxygen atoms and a carbon atom connected by covalent bonds, and is a colorless and odorless gas at room temperature, with a slightly greater density than air, soluble in water, and produces carbonic acid.

2. Solid carbon dioxide is commonly known as dry ice. Carbon dioxide is considered to be the main contributor to the greenhouse effect.

3. Carbon dioxide stuffy limb can be used as fire extinguishing agent, gas fertilizer, medicinal use, etc.

Problem solving ideas: when identifying gases, the different properties of each gas should be used to identify The method we choose must have three different phenomena and identify them according to different phenomena

The burning wooden strips are inserted into the gas collection cylinders, and the oxygen burns more vigorously; It is carbon dioxide that is extinguished; What does not change is the air This question cannot be used with a wooden strip with sparks, because it will be extinguished in both carbon dioxide and air, and the phenomenon is not obvious When the clarified lime water is introduced, there is no obvious change in the lime water in the air and oxygen All three are colorless gases

Therefore, D2 is selected, and the method that can identify the three gases of air, oxygen and carbon dioxide is ( ) aLook at the color.

b.They are respectively passed into the clarified lime water.

c.Insert small wooden strips with Mars separately.

d.Insert small sticks of wood that are burning separately.

Problem solving ideas: when identifying different substances, the selected supplies or drugs must be appropriate, the phenomenon is obvious, and the operation should be as simple as possible The burning wooden strip will have different phenomena in the three bottles of gas, although the wooden strip with sparks can be rekindled in oxygen, but it will be extinguished in carbon dioxide and virtual air, because the oxygen concentration in the air is not high enough Lime water can only detect carbon dioxide, and the three gases are odorless, so they cannot be identified by smelling the smell

a. Because the three gases have no odor, they cannot be identified by smelling, so this is wrong

B. Stretch the burning wooden strip into three bottles of gas, so that the burning wooden strip burns violently is oxygen, what does not change is air, and what is extinguished is carbon dioxide, the phenomenon is obviously different, and the method is simple, so this item is correct

c. The clarified lime water only becomes turbid when it encounters carbon dioxide, and it cannot distinguish between oxygen and air, so this is wrong

d. Because the three gases have no color, they cannot be identified by observing the color, so this error is a loss.

Therefore, choose B 6 to identify the three kinds of mountain god gases of air, oxygen and carbon dioxide, and it is best to choose ( ) in the following methods

a Smell the odor.

b Burning sticks of wood protrude into the gas.

c Pour the clarified lime water into the gas.

d Observe the color.

Because there is a gap between the molecules, when pressurized, the interval between the molecules becomes smaller, so the gaseous carbon dioxide can be compressed into a liquid state and stored in the cylinder;

Gaseous carbon dioxide and liquid carbon dioxide.

The molecules that make them are the same, the molecular properties of the same substance are the same, and the chemical properties of gaseous carbon dioxide and liquid carbon dioxide.

Same So the answer is: There is a gap between molecules; The molecules that make them up are the same