TCT report matches the reaction change
If the TCT report showed that there was a reaction, it usually meant that there was chronic cervicitis. At this time, it can be decided whether to carry out the vaginal-application treatment according to the results of the routine examination of the white discharge and the actual situation of the white discharge. If there is no abnormality in the routine of the white discharge and the white discharge is normal, no treatment can be done; if the white discharge increases or purulence white discharge appears, and the routine of the white discharge indicates that the cleanliness is abnormal, Baofukang Suppository can be used for vaginal-application treatment. This kind of reaction was a normal TCT test result. If there was inflammation, the doctor might suggest treating the inflammation first and then re-examining it three to six months later. Read more exciting novels for free
minority report audience reaction
The audience's reaction to the minority report was divided. On the one hand, although the film's ratings were not low, there were still many viewers who thought it was a "bad film." Some viewers blamed Spielberg's over-commercial operation and thought that the film had become a popcorn movie that emphasized special effects over the plot. However, this view was controversial because special effects and action scenes were the elements of science fiction films. The weak plot of the film was the key to making the audience unable to think deeply. On the other hand, there were also audiences who affirmed the film. They believed that behind Tom's halo and special effects, the film set a proposition worthy of consideration in the plot, such as thinking about how to define crime before it happened, and exploring social and racial issues through the storyline and character descriptions, including the situation of minorities in society, racial discrimination and social division, as well as the protagonist's struggle against self-identity and the meaning of existence. In addition, the TV series had a bad rhythm, poor casting, annoying female lead, flat plot, and other problems that were criticized by some viewers. However, some viewers felt that it inherited the setting of hard science fiction, and the screenwriter paid attention to the scene design. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Animals 'Reaction Handwritten Report
The following are some ideas for making the "Animal Reaction Handwritten Report": ###Part 1: Animals 'reactions to different environments 1. ** Reaction on the road ** - If a deer saw a car on the road, it might panic and even jump off the cliff. This might be because of its timidity and its ability to jump and climb. Elk, on the other hand, were not afraid of stepping on the road due to their height and size advantage. Sometimes, they would take the initiative to attack vehicles. - Cows were relatively calm on the road, but they would pick on the soft persimmons. They did not dare to move in the face of a big car, but they might move in the face of a motorcycle. It was not difficult for a strong cow to lift a small car. - Elephants were more dangerous on the road. They might stop vehicles in order to find food in the car. Old drivers would prepare vegetables and fruits as "toll fees" when they passed by elephant-infested roads. - A kangaroo might trip over a public facility on the road. 2. ** Reaction before the earthquake ** - In terms of ground animals, rabbits, cats, dogs, sheep, pigs, cattle, horses, donkeys and other large livestock had abnormal reactions before the earthquake. The manic type was manifested as barking, crying, sniffing, scratching, biting, running around, etc. Pigs, sheep, and large livestock did not enter the pen, did not eat, made trouble, broke free from the reins, and fled. The melancholic type was manifested as dull, did not eat, etc. Cats would flee in fear, scratch, move with kittens in their mouths, etc. - In terms of flying animals, pigeons, ornamental birds, poultry, pheasants, etc. before the earthquake had abnormal behaviors such as flying, screaming, not entering the nest (nest frame, etc.), not eating, frequent chicken activity, chaos, and squawking. Birds would also crash into cages, change their habitat, or become lifeless. ###2. Plate 2: The reaction of the animal drawing 1. You can draw some small animal sketches to show different reactions. For example, a stick figure of a deer jumping in panic on the road, or a stick figure of a cow standing calmly beside a big car and watching a motorcycle warily. 2. He could also draw different states of animals before the earthquake, such as dogs barking, cats running around with kittens in their mouths, and so on. ###Part 3: The reason behind the reaction 1. from a physiological point of view - Some organs of animals are particularly sensitive. Before an earthquake, the geomhysical field and chemical field will change, resulting in changes in vibration, electricity, magnetism, weather, ground temperature, etc., which will stimulate some of the animal's sensory organs and cause abnormal behavior. 2. From the perspective of habits - For example, the deer's reaction on the road was related to its habit of avoiding the cliff when it was avoiding predators in the wild, and the elephant's behavior of robbing vehicles on the road was also related to its habit of finding food. ###4. Block 4: The attitude towards animal reactions 1. For the abnormal reaction of animals before an earthquake, it could not be simply assumed that an earthquake would occur whenever there was an abnormal animal. Because there were many factors that caused abnormal animals, they had to pay attention to observation, carefully analyze and study, and eliminate non-earthquake factors such as seasonal changes, weather changes, environmental changes, and animal physiological abnormalities. At the same time, they had to pay attention to the types, numbers, and ranges of abnormal animals. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Sucrose Conversion Reaction Test Report
以下是一份蔗糖转化反应测试实验报告的示例： **一、实验目的** 1. 测定蔗糖水溶液在酸催化作用下的反应速率常数和半衰期。 2. 了解旋光度的概念，学习旋光度的测量方法及在化学反应动力学研究中的应用。 **二、实验原理** 蔗糖水溶液在有氢离子存在时将发生水解反应，蔗糖的水解反应为： \(C_{12}H_{22}O_{11}+H_{2}O \stackrel{H^{+}}{\longrightarrow} C_{6}H_{12}O_{6}(葡萄糖)+C_{6}H_{12}O_{6}(果糖)\) 反应中，反应物蔗糖是右旋性物质，其比旋光度\([\alpha]_{D}^{20}= + 66.6^{\circ}\);产物葡萄糖也是右旋性物质，其比旋光度\([\alpha]_{D}^{20}= + 52.5^{\circ}\);而果糖是左旋性物质，其比旋光度\([\alpha]_{D}^{20}= - 91.9^{\circ}\)。随着反应的进行，体系的旋光度不断减小，反应完毕时，体系的旋光度将由右旋变为左旋。 在一定条件下，旋光度\(\alpha\)与反应物浓度\(c\)呈线性关系，即\(\alpha = \beta c\)（\(\beta\)为比例常数）。对于蔗糖的水解反应，设蔗糖的初始浓度为\(c_{0}\)，反应进行到\(t\)时刻蔗糖的浓度为\(c\)，反应完毕时蔗糖的浓度为\(c_{\infty}\)，则有： \(\alpha_{0}=\beta_{1}c_{0}\)（反应开始时的旋光度） \(\alpha_{t}=\beta_{1}c + \beta_{2}(c_{0}-c)\)（反应进行到\(t\)时刻的旋光度） \(\alpha_{\infty}=\beta_{2}c_{0}\)（反应完毕时的旋光度） 由以上三式可得：\(c_{0}=\frac{\alpha_{0}-\alpha_{\infty}}{\beta_{1}-\beta_{2}}\)，\(c=\frac{\alpha_{t}-\alpha_{\infty}}{\beta_{1}-\beta_{2}}\) 根据反应速率方程\(r = - \frac{dc}{dt}=kc\)（一级反应速率方程，\(k\)为反应速率常数），对其积分可得：\(\ln c=-kt + \ln c_{0}\)，将\(c=\frac{\alpha_{t}-\alpha_{\infty}}{\beta_{1}-\beta_{2}}\)，\(c_{0}=\frac{\alpha_{0}-\alpha_{\infty}}{\beta_{1}-\beta_{2}}\)代入上式得： \(\ln(\alpha_{t}-\alpha_{\infty})=-kt+\ln(\alpha_{0}-\alpha_{\infty})\) 以\(\ln(\alpha_{t}-\alpha_{\infty})\)对\(t\)作图，可得一直线，直线的斜率为\(-k\)，由此可求出反应速率常数\(k\)。半衰期\(t_{1/2}=\frac{\ln2}{k}\)。 **三、仪器和试剂** 1. **仪器** - 旋光仪 - 恒温槽 - 磨口塞锥形瓶（250ml） - 烧杯（100ml、1000ml） - 移液管（50ml） - 容量瓶（50ml） 2. **试剂** - 蔗糖（A.R.） - HCl溶液 **四、实验操作** 1. 打开恒温槽，将设定温度调至55°C。 2. 配制溶液： - 准确称取10.0g蔗糖，用少量水溶解后，注入50ml容量瓶中，加水稀释至刻度，摇匀，得到蔗糖溶液。 - 准确量取50ml HCl溶液（3.0mol·dm - 3）于干燥、洁净的250ml磨口塞锥形瓶中。 3. 将旋光仪预热并校正零点（用蒸馏水校正，因为水是非旋光性物质，其旋光度为0）。 4. 迅速将蔗糖溶液倒入盛有HCl溶液的锥形瓶中，混合均匀，同时开始计时。 5. 将混合溶液倒入旋光管中，放入旋光仪中测量不同时间\(t\)的旋光度\(\alpha_{t}\)，测量时间间隔可根据反应速率适当调整，例如开始时每隔2 - 3分钟测量一次，反应后期可适当延长测量间隔时间。 6. 当旋光度基本不变时（反应接近完全），测量反应完毕时的旋光度\(\alpha_{\infty}\)。 **五、实验数据记录与处理** 1. 记录不同时间\(t\)对应的旋光度\(\alpha_{t}\)以及反应完毕时的旋光度\(\alpha_{\infty}\)。 |时间\(t\)(min)|旋光度\(\alpha_{t}\)| |---|---| |0|\(\alpha_{0}\)| |2|\(\alpha_{2}\)| |...|...| |n|\(\alpha_{n}\)| |\(\infty\)|\(\alpha_{\infty}\)| 2. 根据\(\ln(\alpha_{t}-\alpha_{\infty})\)对\(t\)作图，例如使用Excel软件进行数据处理。 3. 由直线的斜率求出反应速率常数\(k\)，根据\(t_{1/2}=\frac{\ln2}{k}\)计算半衰期。 **六、实验结果与讨论** 1. **结果** - 根据实验数据处理得到反应速率常数\(k\)的值以及半衰期\(t_{1/2}\)的值。 2. **讨论** - 分析实验误差的来源，如温度控制的准确性、溶液混合的均匀程度、旋光仪读数的误差等对实验结果的影响。 - 与理论值进行比较，如果存在偏差，探讨可能的原因。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
Experimental Report on the Reaction of Metal and Compound Solution
The following is an example of an experimental report on the reaction of a metal and a compound solution: ** 1. Purpose of the experiment ** 1. To explore the law of the reaction between metals and compound solutions. 2. Comparing the order of activity of different metals. ** 2. Experiment Principle ** The more active metal could replace the less active metal from its compound solution. By observing the reaction phenomenon (such as whether there is a new metal separation, the color change of the solution, etc.) to determine whether the reaction occurred, and then determine the order of metal activity. ** 3. Laboratory supplies ** 1. ** Instrument **: Test tube, test tube rack, tweezers, etc. 2. ** Pharmaceuticals **: aluminum sheet, iron sheet, copper sheet, copper sulfuric acid solution, aluminum sulfuric acid solution, silver nitrates solution, etc. ** 4. Experimental Steps ** 1. Reaction of aluminum and copper sulfuric acid solution - He took a test tube and added a suitable amount of copper sulfuric acid solution. - He used a pair of tweezers to pick up a piece of aluminum and put it into the copper sulfuric acid solution. - Observation: There is a red substance on the surface of the aluminum sheet, and the color of the solution gradually lightens. The reaction equation is: 2AI + 3CuSO = Al2 (SO)+ 3Cu. 2. Reaction of iron and copper sulfuric acid solution - He took out another test tube and added the copper sulfuric acid solution. - He used a pair of tweezers to pick up a piece of iron and put it into the solution. - Red substances were observed on the surface of the iron sheet, and the color of the solution became lighter. The reaction equation was: FeSO2 + CuSO2 = FeSO2 + Cu2. 3. Reaction of Copper with Aluminium-Sulphate Solution - He took out a test tube and added the solution. - He placed a piece of copper. - Observed phenomenon: No obvious phenomenon, indicating that copper cannot replace the aluminum in the aluminum sulfuric acid solution, and the mobility of copper is weaker than that of aluminum. 4. Reaction of Copper with Silver Nitrate Solution - He took out a test tube and added the silver nitrates solution. - Put in the copper plate. - A silver-white substance was seen on the surface of the copper plate, and the color of the solution changed. The reaction equation was: Cu + 2AgNO = Cu(NO) 2 + 2AG. ** 5. Experimental results and analysis ** 1. Through the reaction between aluminum and copper sulfuric acid solution, and the reaction between iron and copper sulfuric acid solution, it could be seen that aluminum and iron were more mobile than copper. 2. Copper did not react with the aluminum sulfuric acid solution, further indicating that the mobility of aluminum was stronger than copper. 3. Copper reacted with silver nitrates, which meant that copper was more mobile than silver. Based on the above experimental results, the order of metal activity was as follows: Al > Cu > Ag, Fe > Cu> ** 6. Experiment conclusion ** 1. The order of metal activity affects the reaction between the metal and the compound solution. The more active metal can replace the less active metal. 2. When describing the reaction phenomenon between metal and metal compound solution, it was necessary to pay attention to the attachment of new metal to the surface of the original metal and the change in color of the solution. 3. This kind of reaction must be carried out in a solution. The metal compound must be water-dissolved, and the metal compound that is not water-dissolved generally does not react with the metal. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Experimental Report on the Effect of Sulfur Sulphate on Iodine Reaction
#Experimental Report on the Effect of Sulfur Sulphate on Iodine Reaction ** I. Introduction ** The reaction between iodines and thiothiosulfates was of great significance in the field of chemical analysis, especially in the process of iodoscopic titrations. The purpose of this experiment was to investigate the effect of the reaction of sulfur dioxide on the reaction of sulfur dioxide, including the reaction principle, reaction phenomenon, and the mechanism behind it. ** 2. Experiment Principle ** 1. ** Reaction equation ** - The chemical equation of the reaction between sulfur dioxide (Na2S2O3) and sulfur dioxide (I2) is: 2Na2S2O3 + I2 = Na2S4O6 + 2NaI. This reaction was an oxido-reduction reaction, in which the reducing agent was thiothiosulfuric acid, and the oxidiser was iodinate. 2. ** Reaction process ** - In the reaction system, the iodines were oxidiser, while the sulfur in the thionate was in an intermediate state and had a reducing property. When the two were mixed, the sulfur atom in the sulfur dioxide was oxided by the iodate, and the iodate itself was reduced to the iodate ion (I^-). ** 3. Experiment Materials and Methods ** 1. ** Experiment Materials ** - Iodine solution (known concentration), solution of thiothiosulfuric acid (known concentration), starch indicator, conical flask, buret, pipet, etc. 2. ** Experiment Method ** - Weigh a certain volume of the solution and place it in a conical flask. Use a pipet to accurately add a certain amount of the solution. At the same time, shake the conical flask to mix the solution thoroughly. When the reaction was approaching the end point, a starch indicator was added to observe the color change of the solution. The experiment was repeated by changing the amount of the solution of thiothiosulfuric acid, and the reaction phenomena and related data under different conditions were recorded. ** 4. Experiment result ** 1. ** Reaction Phenomenon ** - At the beginning of the reaction, the solution did not change color because the reaction between the sulfur and the sulfur was colorless. As the reaction progressed, when there was a small amount of remaining uranium, the solution would turn blue after adding the starch indicator. If he continued to add the solution, the blue color would gradually fade until the solution became colorless. 2. ** Data Record ** - Through many experiments, the corresponding time of the color change of the solution, as well as the change in the concentration of the solution before and after the reaction, were recorded. For example, when adding x ml of the solution of thiothiosulfuric acid, the color of the solution completely faded after the reaction for t seconds. The concentration of the solution before the reaction was C1, and the concentration of the solution after reaction was C2. ** 5. Analysis of the results ** 1. ** Effect on reaction rate ** - It could be seen from the experimental results that the concentration and dosage of the solution had a significant effect on the reaction rate. With the increase of the concentration or the addition of the amount of the Thiosulfuric acid, the reaction rate increased, and the time required for the color change of the solution shortened. This was because in the reaction system, the probability of collision between the molecules of sulfur dioxide and the molecules of sulfur dioxide increased with the increase of the concentration or amount of sulfur dioxide, which made the reaction proceed more quickly. 2. ** Impact on the reaction end point ** - The reaction end point was determined by the color change of the starch indicator. When the iodines were completely reacted with the thiothioates, the starch-iodines in the solution decomposed and the blue color disappeared. If the amount of thionate added was insufficient, the solution would show a blue color, indicating that there was still unreacted iodate; if the amount was too much, the solution would be colorless after the reaction, and the accuracy of subsequent measurement of iodate content might be affected. ** 6. conclusion ** The experiment showed that the effect of the thiothiosulfuric acid on the reaction of the iodines was significant. Its concentration and amount of addition affected the reaction rate and the determination of the reaction end point. In practical applications, such as the operation of the iodoxy method, the dosage of the thionate needed to be precisely controlled to ensure the accuracy of the experimental results. At the same time, this experiment also deepened the understanding of the principle and characteristics of the oxido-reduction reaction between sulfur dioxide and sulfur dioxide. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Lymphathic biochemistry report showed that it was a reaction of proliferating cells.
According to the report of the pathological examination, it was a reaction, which meant that the pathological changes were not neoplastic. Passive proliferations were usually caused by factors such as inflammation, viral infection, and chemotherapy. It could also be caused by tumor metastasizing, but it was currently confirmed to be a passive proliferations. Judging from the role of biochemistry in this situation, when it was difficult to determine whether it was benign proliferations or other diseases by conventional examination, biochemistry could play a role in the diagnosis. In this case where the pathological staining report showed that the tumor was in the form of a reactive neoplasias, it might be due to the fact that the tumor was in the neck, armpit, or groin. After the pathologist performed a series of procedures on the section of the tumor, including fixing, dehydration, and slicing, and then using the pathological staining to mark and interpret it, it was finally determined to be a reactive neoplasias. The characteristics of the responsive proliferating nodes were usually as follows: If it was caused by inflammation, there would often be a clear infection, such as an infection at the corresponding drainage site.(For example, toothache causes the swelling of the ipsilateral neck, athlete's foot causes the swelling of the inguinal nodes, sore throat causes the swelling of the neck nodes, etc.); The swelling speed is often faster, with days or weeks as the time unit, and it can grow larger in a few days or a week; and it will shrink after anti-infection treatment or inflammation subsides; The swollen nodes are often painful to press on, and can be pushed. In this case, even though it was a reaction, it was necessary to pay attention to the subsequent changes, such as paying attention to rest and going to the hospital for regular check-ups, so as to detect possible abnormal changes in time. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Thoughts on the Experimental Report on the Reaction Mechanics of Metal and Solution
Since there was no specific experimental content on the reaction of metals and solutions, the following are the types of experimental questions and solutions that may be involved in the reaction of metals and salt solutions: ** 1. Regarding the reaction phenomenon ** 1. ** Explanation of the color change ** - In the reaction between metal and salt solution, it often involved the change of the color of the solution and the color of the metal surface. For example, when iron reacted with a copper sulfuric acid solution, the solution would turn from blue to light green, and red substances would be separated from the surface of the metallic iron. This is because iron is more mobile than copper, and the replacement reaction occurs in the solution of CuSO4 = FeSO4 + Cu4. The solution of CuSO4 is blue, and the solution of FeSO4 is light green. 2. ** Condition of Sedimentation ** - If copper was added to the silver nitrates solution, a white deposit would be produced. This was because copper was more mobile than silver and could replace silver from its salt solution, and the silver produced would be deposited in solid form. ** 2. Regarding reaction speed ** 1. ** Elements that Affect Reaction Speed ** - The mobility of the metal itself was one of the key factors. The more active the metal, the faster the reaction rate. For example, under the same conditions, the reaction between calcium and sulfuric acid was much more intense than the reaction between iron and sulfuric acid, because the position of calcium in the metal activity order was higher than iron. - The concentration of the solution would also affect the reaction rate. Generally speaking, the higher the concentration of the salt solution, the faster the reaction rate between the metal and the salt solution. For example, the reaction of concentrated silver nitrates with copper was faster than that of diluted silver nitrates. - The reaction temperature had an effect on the reaction rate. Increasing the temperature often sped up the reaction rate. This was because the higher the temperature, the faster the particles moved, and the higher the probability of effective collisions. 2. ** Method for measuring reaction rate ** - The reaction rate could be determined by observing the speed of bubble formation (if the reaction produced gas, such as the reaction between metal and acid) or the speed of the separation of substances on the surface of the metal. For example, put the same size of the particles into the same volume, the same concentration but different temperature of the acid, observe the intensity of the bubble to compare the reaction rate. - More precisely, the reaction rate can be determined by measuring the change in the concentration of the reagent or the change in the concentration of the product per unit of time. For example, in the reaction between metal and acid, the reaction rate could be obtained by measuring the volume of hydrogen produced in a certain period of time and calculating the change in acid concentration with the reaction equation. ** 3. Regarding the reaction product ** 1. ** Method to determine the reaction product ** - For reactions with color changes, the reaction product could be determined based on the color of the solution and the color of the metal surface. For example, the color of the solution became lighter after the reaction between the copper and copper sulfuric acid solution, and there was a red substance on the surface of the copper. It could be speculated that the reaction formed copper and copper sulfuric acid. - The reaction product can be determined by chemical analysis methods, such as adding specific reagents to carry out a settling reaction, a color reaction, and the like. For example, if a blue deposit was produced by adding a solution of soda ash to the solution after the reaction, it could further prove that there were copper ions in the reaction product. 2. ** Potential side reaction products ** - In some complex reaction systems, there may be side reactions. For example, metals might undergo an oxidization reaction in a solution. In the air, the surface of the metal might form an oxide-like film, which would affect the reaction between the metal and the solution. In some cases, metals may react with impurities in the solution to form other products. ** 4. Regarding the chemical equilibrium of the reaction (if the reaction is irreversible)** 1. ** Judge whether the reaction has reached a balance ** - It could be judged by observing whether certain properties of the reaction system no longer changed with time. For example, the color of the reaction system, the pressure (if there is gas involved in the reaction), and so on. If the concentration of a certain ion in the reaction system remained unchanged after a period of time, it might also mean that the reaction had reached equilibrium. 2. ** The factors that affect chemical equilibrium ** - A change in temperature could shift the balance. According to Le Chatelier's principle, raising the temperature would shift the equilibrium towards an alcoholic reaction, and lowering the temperature would shift the equilibrium towards an alcoholic reaction. - The change in concentration would also affect the balance. Increasing the concentration of the reagent or decreasing the concentration of the product would move the equilibrium in the direction of the positive reaction, and vice versa. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
TCT cells greater than 5000, less inflammation
TCT (Liquid Based Thin Layer Cytological Testing Technique) showed that the number of cells was greater than 5000 and the inflammation was mild, indicating that enough cell samples had been obtained for analysis during the cervical smear, and there was a mild inflammation. This mild inflammation meant that there was benign inflammation in the uterus, but it had not yet reached the level of precancerosis. It could basically rule out cervical cancer, but it might be an acute or chronic infection in the uterus, such as Neisseria gonoracia infection, Chrysanthemum infection, reproductive tract infection, etc. Although it was mild inflammation, it still needed to be taken seriously. Treatment should be actively targeted at possible pathogenic bacteria. At the same time, attention should be paid to personal hygiene. If medication was needed, it should be strictly followed by the doctor's advice. It was not allowed to use medicine at will to avoid adverse reactions. In addition, regular reexaminations should also be carried out according to the doctor's suggestion. For example, if there is no change in pathological changes or inflammation, follow-up can be carried out and re-examined one year later. If it is severe inflammation, sometimes the doctor may recommend re-examination after 6 months, because more inflammatory cells in severe inflammation may affect the judgment results and reduce the accuracy. Treatment of inflammation before re-examination can avoid missed diagnosis. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Does the Molar Reaction Enthality Change with the Change of Temperatures?
The standard mole of a chemical reaction changed with temperature. In engineering chemistry, it was generally believed that the change of the molecular reaction's temperature did not change, and this difference was often ignored in calculations (because the difference was generally less than 5%). However, in fact, the molecular reaction's molecular reaction's temperature was different. Using the formation and combustion energetics in the manual, one could only calculate the standard mole reaction energetics at 298K. If one needed the standard mole reaction energetics at other temperatures, one would need to consider the changes with temperature. If there is no phase change in the temperature range, the definite or uncertain integral formula of Kirchhoff's law can be used to calculate the reaction heat at different temperatures. If some substances have a phase change, the above formula cannot be used directly. It needs to be calculated in sections. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Experimental Report on the Reaction of Dilute Sulfuric Acid and Natrium Hydride
|experimental procedure| experimental phenomenon| experiment conclusion| |--|--|--| |continuously dripping the sulfuric acid into a solution of sulfuric acid in the presence of phenothalin.| The red color of the solution gradually disappeared| The diluted sulfuric acid reacted with the soda, and the equation was as follows: HC1 + NaOx = NaCl2 + H2O. When the red color just disappeared, it meant that the added sulfuric acid had completely reacted with the solution of sulfuric acid. This was because the combination of the Oh in the solution of sulfuric acid and the H in the solution of sulfuric acid formed H O, causing the solution to gradually weaken until it was neutral.| |continuously dropping the solution of the solution| If a solution of NaH was added to the solution of NaH, the initial solution would have a pH-value of <7, and the pH-value would gradually increase with the addition of NaH. If a solution of NaH was added to the solution of NaH, the initial pH-value of the solution would be <7, and the pH-value would decrease with the addition of acid. When the reaction was complete and formed NaCl-water, the pH-value would be <7. When the acid was excessive, the pH-value would be <7.| By measuring the change of the pH-value, one could directly see the change of the pH-value of the solution during the reaction between diluted sulfuric acid and the solution of the solution of| <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>