Check the price and dosage of green monoxide

100 pots is 53 kilograms of carbon monoxide and kilograms of formaldehyde.

Of course, whether the spider plant really has this efficiency is a question.

(1) In order to make the experiment go smoothly and ensure that the device does not leak, check the air tightness of the device before the experiment;

2) When K2 is opened, the gas enters the clarified lime water, and the heating is completed, indicating that it is necessary to check and verify whether there is carbon dioxide in the product of CO reduction of Fe2O3;

3) CO is flammable, so the CO in this experiment must be pure; In this experiment, water vapor may be generated, such as mixed with water vapor, and the hard test tube with high temperature will burst when encountered, so it should be dried before entering, and concentrated sulfuric acid should be placed in the C bottle to absorb water;

To obtain soda ash solids from the solution, evaporation and crystallization methods can be used;

Excess CO is discharged from D and enters A for recycling, which can reduce carbon emissions and improve the utilization rate of raw materials;

Therefore, the answer is: 1) the device must be inspected for air tightness;

2) Verify the products of CO-reduced Fe2O3;

3) concentrated sulfuric acid; Dry carbon monoxide to prevent the test tube from bursting (reasonable or reasonable);

Evaporate; Reduce carbon emissions and improve the utilization rate of raw materials (other answers are reasonable).

Hello, the answer is horses.

Centaurs are energetic, but impatient and reckless. The biggest advantage of horse people is that they have strong self-confidence, treat people well, and have the best ability to manage money. Horses who do not conform to the rules are dressed in a fashionable way to show off, and when there are events or gatherings, they generally choose light colors, peculiar styles, gorgeous and tacky clothes.

Horses love intellectual training and physical activities, which can be seen in the dexterous movements, graceful posture and rapid speaking speed of the horses. Horses are quick to react and make quick decisions, and their wavering and impatient weaknesses are often compensated for by their flexible and cheerful personalities. In the order of the earthly branches, the horse is synonymous with the fun-loving, the greedy for enjoyment* and the delicate lady.

Centaurs like to join in the fun, are generous to others, and are full of optimism. Centaurs are flexible, just like Centaurs' view of love, and they are quick and dexterous, always able to dominate those around them.

A. According to the chemical formula CH4O, it can be seen that the ratio of the number of atoms of C and O elements in the substance is 1:1, which is in line with the characteristics of the organic matter generated, so A is correct;

B. According to the chemical formula CH2O, it can be seen that the ratio of the number of atoms of C and O elements in the substance is 1:1, which is in line with the characteristics of the organic matter generated, so B is correct;

c. According to the chemical formula C2H6O, it can be seen that the ratio of the number of atoms of C and O elements in the substance is 2:1, which does not conform to the characteristics of the generated organic matter, so C is wrong;

d. According to the chemical formula C2H4O, it can be seen that the ratio of the number of atoms of C and O elements in the substance is 2:1, which does not conform to the characteristics of the organic matter generated, so D is wrong;

Therefore, ab