Chemical
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?
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
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?
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
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
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
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
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
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
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
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
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 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
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
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
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 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 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
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
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
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
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
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
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
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
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
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
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 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
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