University Evaluation

Chemical

  • The stealth phenomenon of flying saucers

    The stealth phenomenon of flying saucers

    Today to share with you the knowledge of UFO stealth phenomenon, if you happen to solve the problems you are facing now, don't forget to follow this site and start now! What are the phenomena when...

    Date: 2023-01-16  Chemical  
  • Is UFO anti-gravity?

    Is UFO anti-gravity?

    Today is 2023-01-16. Let me tell you a little bit about whether UFOs are anti-gravity. The text will begin soon. What do flying saucers fly on? When can we build a UFO? Guide: we often hear about UFO...

    Date: 2023-01-16  Chemical  
  • Faraday achievement

    Faraday achievement

    Today, I would like to share with you the knowledge of Faraday's achievements. if you happen to solve the problems you are facing, don't forget to follow this site and start now! What are Farada...

    Date: 2023-01-14  Chemical  
  • What does quantum entanglement mean?

    What does quantum entanglement mean?

    This article gives you about the meaning of quantum entanglement corresponding to the knowledge points, I hope to help you, do not forget to collect this site. What is the simple explanation of quantu...

    Date: 2023-01-14  Chemical  
  • How about chemistry major of Harvard University

    How about chemistry major of Harvard University

    What are the top ten American schools in chemistry?The chemistry major is usually set up in the liberal arts and sciences college. It has four traditional research fields, namely, analytical chemistry...

    Date: 2022-11-20  Chemical  
  • French Chemistry

    French Chemistry

    Which university in France is famous for its chemistry major? Please, everyone Thank youI suggest that you apply from the third year of the university. Generally, you don't need to take an exam. As...

    Date: 2022-11-07  Chemical  
  • German Chemistry

    German Chemistry

    Which German schools have an international master's degree in chemistry?TOEFL is better. According to the ranking of Stern, Germany is in the chemical specialty Uni Gö Ttingen, Uni Marburg, Un...

    Date: 2022-11-07  Chemical  
  • American Chemistry

    American Chemistry

    What are the best chemical engineering universities in the United StatesAccording to the research data of College Facial, the average starting salary of MIT chemical engineering graduates is $80000, a...

    Date: 2022-11-07  Chemical  
  • Composition of Coca Cola

    Composition of Coca Cola

    What is Coca Cola made of?The main ingredients of Coca Cola: water, fructose syrup, white granulated sugar, caramel color, carbon dioxide, phosphoric acid, caffeine, and edible spices. Coca Cola: In 1...

    Date: 2022-11-07  Chemical  
  • Methods for synthesis of phenobarbital

    Methods for synthesis of phenobarbital

    What is theophyllineTheophylline can reduce the tension of smooth muscle and dilate the respiratory tract; It can promote the release of endogenous adrenaline and noradrenaline, and relax the airway s...

    Date: 2022-11-07  Chemical  
  • Steps for synthesis of polymer compounds  new application fields of rubber

    Steps for synthesis of polymer compounds new application fields of rubber

    What are the mechanisms of polymer synthesis? What are the aggregation implementation methodsPolymer magnetic material: it is one of the materials that give new meaning and content to the traditional...

    Date: 2022-06-23  Chemical  
  • Reaction between sulfuric acid and metal  note dilute sulfuric acid

    Reaction between sulfuric acid and metal note dilute sulfuric acid

    Which metals can react with sulfuric acid to produce hydrogenIn short, all active metals can react with sulfuric acid. Note that dilute sulfuric acid produces hydrogen. The most typical reaction is th...

    Date: 2022-06-23  Chemical  
  • Can sulfuric acid corrode silicon  can concentrated sulfuric acid react with silicon

    Can sulfuric acid corrode silicon can concentrated sulfuric acid react with silicon

    Can silicone material resist 98% concentrated sulfuric acidNot at all. I have tested it myself. When the silica gel tube is placed in concentrated sulfuric acid, the surface will immediately become wh...

    Date: 2022-06-23  Chemical  
  • Molecular formula of nitroglycerin  what is the structural formula of glycerin

    Molecular formula of nitroglycerin what is the structural formula of glycerin

    What is the structural formula of glycerolAcrolein). This smell often occurs when the oil is hot, which is due to the production of acrolein. The colorless oily liquid obtained by the reaction of glyc...

    Date: 2022-06-23  Chemical  
  • How to convert oil into sugar  for embryo use

    How to convert oil into sugar for embryo use

    What is the mechanism of fat conversion into sugar during seed germination of oil cropsWhen oil seeds germinate, the fat is first hydrolyzed into fatty acids and glycerol, and then transformed into su...

    Date: 2022-06-23  Chemical  
  • Chemical synthesis of diamonds  how diamonds are formed

    Chemical synthesis of diamonds how diamonds are formed

    How diamonds are formedThe hardest diamond in nature artificial diamond formation: there are two methods of synthetic diamond, namely, high temperature and high pressure method and chemical vapor dep...

    Date: 2022-06-23  Chemical  
  • Is nitrosamine dangerous  mutagenic substance

    Is nitrosamine dangerous mutagenic substance

    Is nitrite harmful to the bodyMoreover, nitrite reacts with secondary amines inside and outside the human body to form nitrosamines. When it reaches a certain dose in the human body, it is a carcinoge...

    Date: 2022-06-23  Chemical  
  • What is the molar volume of the gas  same number of molecules

    What is the molar volume of the gas same number of molecules

    What is the formula for calculating the molar volume of gasN=n/na n=m/m pv=nrt pv=nrt the same temperature and pressure, the same volume, the same number of molecules, that is, the same number of gas...

    Date: 2022-06-23  Chemical  
  • How to explain the quantity and concentration of substances?  that is, how many particles are there per unit volume

    How to explain the quantity and concentration of substances? that is, how many particles are there per unit volume

    What is the quantity and concentration of substances? It is easy to understand, and how to calculate it can give a small exampleIs how many particles are in a unit volume. Of course, the number of par...

    Date: 2022-06-23  Chemical  
  • Inference of Avogadro's law

    Inference of Avogadro's law

    Avogadro's law and its proof processAvogadro's law infers that we can use Avogadro's law and the quantity of matter and the number of moleculesAvogadro's law and its corollaries how can we...

    Date: 2022-06-23  Chemical  
  • What is electrolyte  how to distinguish what is electrolyte

    What is electrolyte how to distinguish what is electrolyte

    How to distinguish what is electrolyte(1) What is electrolyte? A substance that has ionic conductivity or can exhibit ionic conductivity under certain conditions (such as melting at high temperature o...

    Date: 2022-06-23  Chemical  
  • Ionic reaction and its occurrence conditions  also redox ionic reaction

    Ionic reaction and its occurrence conditions also redox ionic reaction

    What are the conditions for the ionic reactionIons can react with each other to reduce the concentration of ions. It is not necessarily to generate insoluble weak electrolytes, but also redox ion reac...

    Date: 2022-06-23  Chemical  
  • Composition of alcohols and phenols  how to distinguish phenols and alcohols

    Composition of alcohols and phenols how to distinguish phenols and alcohols

    How to distinguish phenol from alcoholTherefore, most of them cannot exist stably. In organic chemistry, phenolic compounds (English: phenols) are a class of aromatic compounds with the general formul...

    Date: 2022-06-23  Chemical  
  • Hydrocarbon derivatives  what are hydrocarbon derivatives

    Hydrocarbon derivatives what are hydrocarbon derivatives

    What are hydrocarbon derivatives? What are aromatic derivativesHydrocarbon derivatives refer to organic substances that contain not only carbon and hydrogen, but also other elements, so they can only...

    Date: 2022-06-23  Chemical  
  • Extraction of caffeine from tea  except ethanol extraction

    Extraction of caffeine from tea except ethanol extraction

    In the experiment of extracting caffeine from tea, in addition to ethanol extraction, what solvents can be usedEthyl acetate, chloroform, pyrimidine, pyrrole, tetrahydrofuran and acetone can also be u...

    Date: 2022-06-23  Chemical  
  • Extracting iodine from seawater  burning off organic matter

    Extracting iodine from seawater burning off organic matter

    How is iodine extracted from seawaterIodine in seawater is mainly enriched in some seaweeds, such as seaweed, etc. these seaweeds are burned to remove organic substances, and the ash is dissolved in w...

    Date: 2022-06-23  Chemical  
  • Hydrocarbon and halogenated hydrocarbon  is halogenated hydrocarbon a hydrocarbon substance

    Hydrocarbon and halogenated hydrocarbon is halogenated hydrocarbon a hydrocarbon substance

    Is halogenated hydrocarbon a hydrocarbon substanceHalogenated hydrocarbon as the name suggests: halogenated elements replace hydrocarbons (hydrogen atoms in). Let me give you an exercise; You will; Ex...

    Date: 2022-06-23  Chemical  
  • Classification of organic compounds  organic compounds are divided into three categories: 1

    Classification of organic compounds organic compounds are divided into three categories: 1

    What are the sixteen main categories of organic compounds? What are the classification criteriaAccording to the basic skeleton formed by the combination of carbon atoms, organic compounds are divided...

    Date: 2022-06-23  Chemical  
  • How to synthesize gold?  gold coins can be dropped by pirate parrots

    How to synthesize gold? gold coins can be dropped by pirate parrots

    How to exchange gold coins for gold coins in famine BeachRub gold with gold coins 3:1. The gold coins can be dropped by the Pirate Parrot or exchanged with brother Octopus! Synthetic gold is the lates...

    Date: 2022-06-23  Chemical  
  • Principle of synthetic alcohol  how alcohol is made

    Principle of synthetic alcohol how alcohol is made

    How is alcohol madeEthylene hydration method: ethylene produced from petroleum cracking is used as raw material. Under the conditions of heating and pressure and catalyst (sulfuric acid or phosphoric...

    Date: 2022-06-23  Chemical