Monocalcium-phosphorus was a high-efficiency and excellent feed supplement for phosphorous. It had the characteristics of high phosphorus content and good water dissolution. It was currently the highest biological value of a feed grade calcium phosphorus salt. In animal feed, it is used to supplement mineral nutrients such as phosphorus and calcium needed by aquatic animals and livestock. Its acidic nature could maintain the balance of the intestinal flora, reduce the rate of diarrhea, and improve the digestive ability of the weaned livestock. The addition ratio in aquatic feed was 1% - 3%, and the utilization rate of fish and shrimp to the phosphorus was as high as 94% - 98%. Read more exciting novels for free
When the ratio of the reaction between the two was 1:1, the chemical equation was NaHSO4 +Ba(SH)2==H2O+ NaOx + BaSO4. The reaction produced water, the precipitations of soda, and the precipitations of bis sulfuric acid. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction mechanism between alkyls and halos was a substitution reaction of free radical. In the reaction, the halo (such as pure chorine, pure bromine, and not chorine water or bromine water) under the conditions of light/heat/free radical initiator, X-X was split into two X-free radical, X -and the HX-H on the alkyls formed hydrogen halo, and the alkyls left the alkyls free radical, which then reacted with X-X to form X -, and the cycle reaction could continue. The reaction between an aromatic compound (such as alkyne and alkyne) and a hydrogen atom was mainly an addition reaction. The double bond in an aromatic compound was a sigma-bond and a pi-bond. The pi-bond was more unstable and easy to break. The double bond opened to become a single bond, and the broken small half bond formed a covalent-bond with the hydrogen atom. In addition, the addition reaction of the hydrogen atom with the unsatured carbon could also be carried out. Aromatic compounds could only be substituted with a catalyst (such as iron trihalide, aluminum trihalide, iron powder, etc.), except for very active compounds (such as aromatic amine, vitamins, etc.). Fatty acid could only be substituted with a catalyst of red phosphorus, which generally produced an alpha substituted product. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There were some problems with the reaction of hydrogen with sulfuric acid, even at temperatures below 25 degrees Celsius. Because the reaction between diluted sulfuric acid and zincate was an exothermic reaction, as the reaction progressed, the temperature of the reaction system would increase, and the volatile nature of the sulfuric acid would increase. As a result, the obtained hydrogen gas often contained hydrogen chloride-like gas and was not pure. Although diluted sulfuric acid could be used as a reagent to produce hydrogen, it had the drawback of impure hydrogen compared to diluted sulfuric acid. In addition, the reason why they didn't use concentrated sulfuric acid to produce hydrogen was because concentrated sulfuric acid was more volatile, and the hydrogen produced was more likely to be mixed with hydrogen chloride-like gas. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The biological characteristics of the carp were as follows: - [Life Habits: It is a cold and warm water type fish. It can adapt to all kinds of water temperature environments. When the temperature is high in summer, it will reduce its metabolism and activity to adapt to the high temperature. It can also endure short-term drought or lack of oxygen.] - ** Feeds **: Omnivorous fish. Their food mainly includes planktons, benthos, aquatic plants, and insects. Plant food has a large demand, and they can consume nutrients such as protein and biochemistry through plant food. - ** Spawning and Reproduction **: The spawning period is generally from March to May, and the suitable water temperature is between 15 - 18 ° C. Female fish will choose a smoother and more oxygen rich bottom area to lay eggs. The adult stage is about 2 - 3 years old, and the reproductive ability is strong. - ** Physical characteristics **: The body is long and round, the back is raised, and the lateral line is obvious; the head is long and big, the mouth is round, and the gills are short; the scales are small and thin, the color is mainly silver-white, and sometimes there are golden spots; the body length is generally between 20 - 30cm, and the weight is about 1 - 2 kg. Carassius auratus was native to eastern Asia (mainly distributed in China, North Korea, and South Korea) and was later introduced to other regions. It had a strong ability to adapt to the environment and could survive and reproduce in adverse environments (such as low oxygen and highly acidic water bodies). In addition, its body is streamlined, its body is tall and flat on one side, its mouth is blunt, its lips are thick, and it doesn't need to be seen. The body is the highest at the beginning of the dorsal fin, the abdominal edge is narrow and there is no skin ridge, the abdomen is round, the tail handle is short and wide, and the caudal fin is shallowly forked. The body color of different ages and genders of Crucian carp is different. The body color of big fish is darker. The back of small fish under 1 week old is often green-gray, and the sides and bottom are silver-white. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The hydrogen airship was a type of airship that used hydrogen as the filling gas. At standard atmospheric pressure and 0 ° C, its density was 0.0899g/L. This characteristic allowed hydrogen to be used to fill airships to generate buoyancy to lift them off. However, hydrogen was flammable and not very safe. For example, in 1937, when the Hindeburg airship was about to land, the hydrogen had to be released. At that time, there was no wind, and the hydrogen could not be dispersed. It mixed with oxygen, and the static sparks caused by the contact between the cable and the ground caused an explosion. Moreover, the airship's outer shell was made of aluminum, which caused a thermal reaction that caused it to burn rapidly. After this accident, humans became more cautious in the choice of gas filling in airships. Modern airships were mostly filled with helium. However, hydrogen could be produced in a variety of ways, while helium was a rare gas that was difficult and expensive to produce. The early airship development went through three eras of human-powered, steam-powered, and electric powered. It was used in the military field during World War I. In terms of origin, airships developed from hot air balloons. The first recorded hot air balloon appeared in 1783, and the first airship appeared in 1784. At the beginning of its birth, hydrogen airships were mainly used in the field of transportation. Now, with the development of technology and other factors, new airships (mostly non-hydrogen-filled) were widely used in transportation, aerial photography, remote sensing, advertising, and aerial exploration. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!
The reaction mechanism of hydrogen production from gasoline mainly had the following methods: 1. The steam reforming reaction (MPR) of the gasoline was one of the most common methods. The reaction equation is CH30H + H2O → CO2+ 3H2. In this reaction, the reaction between the alcohol and water vapor occurred under the effect of a catalyst to produce carbon dioxide and hydrogen. This reaction process was relatively complicated, involving the activation of the alcohol molecules, the breaking and reassembly of chemical bonds, and many other steps. 2. The reaction equation is CH30H + 1/2O2 → CO2+ 2H2. In this reaction, the partial oxidization of the oxygen and the alcohol produced carbon dioxide as well as hydrogen. The characteristic of this method was that the reaction speed was relatively fast, but the control of the reaction process was relatively difficult. It was necessary to accurately control the amount of oxygen supplied to avoid over-oxidization or incomplete reactions. 3. Alcohol autothermal reforming (ATR): It was a hydrogen production method that combined the steam reforming reaction and the partial oxidization reaction of the alcohol. The reaction equation can be roughly expressed as CH30H + xO2 +(1 - x)H2O → CO2+ (3 - 2x)H2. This method used the heat generated by the partial oxygen reaction to supply the steam reforming reaction, thus improving the energy utilization efficiency. It had certain advantages in practical applications. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
No. The chemical equation of the reaction between sulfur and hydrogen dioxide is [3H_{2}O_{2}+S = H_{2} SO4_{4}+2H_2}O]. The reaction products are sulfuric acid and water, and no hydrogen is produced. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The mixture of hydrogen peroxide-hydrogen peroxide-acid and hydrogen iodinate-acid would result in an oxido-reduction reaction. The reaction equation is [H2O2 + 2Hi]. In this reaction, the valency of the oxygen element in the hydrogen peroxid decreased from-1 to-2, showing its oxidisation, while the valency of the iodine-element in the hydrogen iodinate increased from-1 to 0, showing its reduction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation for the reaction of a halo gas (such as Cl2 <anno data-annotation-id ="cdf3c12 - 4c10 - 4c10 - 4c10 - 9c1111111124"> Cl2 </anno>) with a solution of NaClO </anno> is: The chemical equation for the reaction of Bromine and Iodine at room temperature with a solution of NaOx at room temperature is X <2>+2NaOx = NaX + NaOx + H <2> O <3>(X <3> represents either Bror I <3>). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
** 1. macro characteristics ** 1. ** Phenomenon ** - When hydrogen was burned in oxygen, it would burn quietly and produce a light blue flame (when hydrogen was burned in the mouth of the glass tube, the flame was often slightly yellow). - A dry and cold beaker was placed above the flame. Water droplets would appear on the inner wall of the beaker, indicating that a new substance, water, had been formed. - The reaction process was accompanied by the phenomenon of light and heat. This was the performance of chemical energy being converted into heat and light energy. 2. ** Material Change and Energy ** - In terms of material changes, hydrogen and oxygen reacted to form water, which was a new substance. The reaction equation was 2H2 + O2→ 2H2O. - In terms of energy, the reaction released a large amount of heat. For example, rockets used the thrust generated by the reaction of liquid hydrogen and liquid oxygen (or solid hydrogen and solid oxygen) to fly. The hydrogen fuel cell also used the reaction of hydrogen and oxygen to produce water, electricity, and heat. The whole process was quiet, non-polluting, and completely carbon-free. The battery efficiency was 2 - 3 times higher than fossil fuel combustion, and the energy conversion efficiency could reach 80 - 90%. ** 2. Microscopic features ** 1. ** At the molecular level ** - From a microscopic point of view, hydrogen was made up of hydrogen molecules (H <2>), and oxygen was made up of oxygen molecules (O <2>). During the reaction, every two hydrogen molecules and one oxygen molecules would react. The chemical bond between them would break, and the atoms would reassemble to form two water molecules (H <2> O). 2. ** Atomic level ** - During the reaction, the number of hydrogen and oxygen atoms remained unchanged. Before the reaction, the hydrogen and oxygen atoms existed in the form of hydrogen and oxygen molecules. After the reaction, they combined to form water molecules. This was in line with the law of conservation of mass, which meant that in a chemical reaction, the sum of the masses of the substances participating in the reaction was equal to the sum of the masses of the substances formed after the reaction. From a microscopic perspective, the type, number, and mass of the atoms before and after the reaction did not change. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>