How is small decomposition and microdecomposition defined chemically?

A small amount is generally considered a relatively serious decomposition, which is macroscopic and uncontrollable, which has a greater impact on the results, and can generally be ignored if it is a small amount, unless the reagent has high sensitivity requirements, otherwise it will be ignored.

Good evening, impossible. Pure only the use of sunlight that little radiation energy to make cinnabar quickly decompose metal mercury is not possible, must at least reach the temperature of the mercury sulfur broken bonds, the ancient so-called mercury alchemy process to the emperor alchemy is in the closed reactor to the cinnabar to strengthen the heat at the same time add a small amount of carbon black for catalysis, the temperature in the kettle should reach at least 500 degrees or more, then the mercury sulfur bond break begins and precipitates mercury vapor, after the cooling of the water-cooled pipe out of the furnace becomes a liquid metal mercury is collected in an iron container. Even the black car shell with the strongest absorbance in direct sunlight in the middle of summer this year has a surface temperature of no more than 100 degrees, and cinnabar does not react at this temperature, please refer to it as appropriate.

There is an exception to this rule, if you focus the sunlight with a prism, the temperature of this point may be as high as two or three ignition of the paper, but even then it will not be able to precipitate metal mercury - cinnabar light needs 400 degrees to complete the first step of configuration transformation, and 200-300 degrees is at most the temperature of the frying pan, which is relatively safe.

Particle content? There should be something in the book, right, content demarcation or something?

A small amount is generally considered a more serious decomposition, which is macroscopic uncontrollable, and the result has a large shadow of the scale, and the trace amount can generally be ignored, unless the reagent has higher sensitivity requirements, otherwise Ling Ziyu will ignore it.

For example, if I say that a small amount of iron filings reacts with dilute hydrochloric acid, it means that there is a trace of dilute hydrochloric acid left after the reaction! Less than a small amount, generally rarely see this word, can be seen in the dissolved place, micro dissolution is a trace of dissolution, very small excess, naturally is positive infinity, such as excess iron and dilute hydrochloric acid reaction, which means that dilute hydrochloric acid is all gone, iron still has an appropriate amount left, that is, just right, such as the appropriate amount of iron and dilute hydrochloric acid reaction, that is, iron is just the end of the reaction, there is no left, but dilute hydrochloric acid may or may not be left. The general question will give the appropriate amount, such as taking the appropriate amount of sodium chloride to prepare a solution that is just saturated, and going to the appropriate amount of so-and-so powder This place can't be so difficult for you, and you will also see it very clearly.

The reaction in which two or more other substances are produced from one substance is called a decomposition reaction. The abbreviation is divided into two and is expressed as ab a ten b. Only the chemical compound can undergo a decomposition reaction.

For example, 2kclo3(mno2)===( )2kcl+3o potassium permanganate can be heated and decomposed into potassium manganate, manganese dioxide, and oxygen.

2kmno4===（△）k2mno4+mno2+o2↑

The reaction of multiple substances from one substance is one of the four basic types of reactions.

Trace amounts are less than small amounts.

Words] in small amounts.

全spelling]: shǎoliàng].

Interpretation]: Relatively small quantities and portions.

In biology and chemistry, it is defined as the component of a substance with a content of less than 1 part per million and more than 1 part per million.

For example, it is biologically stipulated that the content accounts for less than 1/10,000 of the total mass of the organism, and the element above 1/1 million is trace elements.

The method of analysis of trace substances is called microanalysis.

Small amount – a small amount or portion.

Micro – a tiny amount, a very small amount.

Both small and micro mean very little, but a small amount is more than a small amount.

Decomposition is the decomposition of a substance into multiple substances, a chemical change process in which a chemical reaction occurs.

Separation is the separation of two or more substances, there is no chemical process in the physical process, and separation is a physical reaction.

Separation is the separation of multiple substances, and decomposition is the transformation of one substance into multiple substances.

It can be simply said that separation is a physical change and decomposition is a chemical change.

The extraction principle is that the solubility of this substance in other solvents is greater than that in the original solvent, and the other solvents mentioned here are incompatible with the original solvents, and the separation depends on the chemical or physical properties of the substance, and the main methods are separation, precipitation, etc.

In fact, the decomposition of alcohol in the body is determined by multiple factors such as the degree of alcohol, the ability of the person to break down alcohol, and the amount of alcohol.

How long does it take for the blood to empty after drinking?

First of all, we need to be clear about what alcohol goes through in the human body. Alcohol, also known as ethanol, is absorbed in about 10 minutes after entering the human body, entering the bloodstream, and reaching its peak in 60-90 minutes. 20% of alcohol is absorbed by the stomach and 80% by the small intestine.

After the alcohol enters the bloodstream, it is transported to the liver. Alcohol dehydrogenase in the liver converts ethanol to acetaldehyde, which is converted to acetic acid by acetaldehyde dehydrogenase. Acetic acid is then thoroughly converted into carbon dioxide and water by hepatic enzymes (cytochrome P450) and excreted from the body.

Alcohol is decomposed by the liver in the human body, and the decomposition process of ethanol and acetaldehyde is participated by ethanol dehydrogenase, and the amount of ethanol dehydrogenase in different human bodies is about the same, and this process can generally be completed, and there is little difference at this stage.

The acetaldehyde acetic acid decomposition process requires the participation of acetaldehyde dehydrogenase in the liver, but the amount of acetaldehyde dehydrogenase in different human bodies varies greatly, so some people sober up quickly and some people slowly. If the decomposition is too slow, it will lead to the accumulation of acetaldehyde, which will then cause symptoms such as facial redness, headache, palpitation, and nausea.

According to the current scientific research point of view, the normal speed of decomposition of alcohol is about 10 grams of an hour, 1 gram of wine is about equal to 1 ml, of course, the metabolic ability of people is not the same, some people are slightly faster, some people are slower, the metabolic speed is related to people's physique, environment, temperature, mood and other factors will also change.

More than 95 percent of the alcohol (ethanol) ingested into the body is catabolized in the body, except for a very small amount excreted through respiration and urine, and the liver is an important organ for ethanol metabolism. It is further oxidized to carbon dioxide and water in the surrounding tissues, and the rest enters the sugar and/or fat pools in the liver, or enters the tricarboxylic acid cycle for oxidative decomposition. Both ethanol and acetaldehyde can cause dizziness, flushing, rapid heartbeat, and even confusion, but acetaldehyde has a greater effect than ethanol.

When you drink a sip of wine, it first passes through the mouth, then through the esophagus into the stomach, finally into the small intestine, then most of it goes to the liver, a small part goes to the kidneys and lungs, and finally it is excreted through the intestines, bladder and breathing.

After drinking a sip of wine, the absorption of alcohol by the mouth is minimal. Once in the stomach, alcohol can pass through the lining of the stomach and enter the bloodstream within 5 minutes. During a short period of time when the wine stays in the stomach, the stomach can absorb 20% of the alcohol.

The alcohol then enters the small intestine, which will be the last place where the alcohol enters the liver, kidneys, and lungs. The small intestine will absorb the remaining 80% of the alcohol. The alcohol then travels through the bloodstream and into the liver, kidneys, and lungs.

The liver breaks down most of the alcohol, and the kidneys and breathe through the lungs excrete only 2%-10% of the total amount of alcohol.

The body needs three substances to break down alcohol: alcohol dehydrogenase, acetaldehyde dehydrogenase, and intrahepatic p450. When you drink a sip of wine, the enzyme alcohol dehydrogenase in the digestive tract breaks down a small amount of alcohol, and more alcohol needs to enter the liver, where the enzyme alcohol dehydrogenase converts its alcohol from ethanol to acetaldehyde.

Acetaldehyde is then oxidized to acetic acid by acetaldehyde dehydrogenase in the liver and p450 in the liver, which then enters the tricarboxylic acid cycle of sugars, fats, and amino acids, and is finally excreted from the body.

There are three elements that are needed to make a good and easily drunk drink: spirits, a certain soft drink, and caffeine.

The effect of spirits is to get drunk (nonsense), we just need to have a relatively high concentration of alcohol, not aroma. That's why I usually choose vodka, which has a less pronounced flavor than other liquors such as whiskey.

The role of soft drinks is to make the drink easy to drink, so that it can be happily consumed in large quantities. The specific varieties vary from person to person, depending on personal preference, cola, juice, and liqueur are all better choices.

The effect of caffeine is to relieve the feeling of being on the head, so that the drinker has the illusion that the alcohol content of this drink is not high, and it is easy to drink too much. Caffeine** mainly consists of energy drinks, tea, and coffee.

In short, the principle is: add vodka if you are not drunk enough, drink sugary drinks well enough, add ice soda if you are not refreshing enough, and finally supplement caffeine appropriately.

Finally, I want to tell you that drinking doesn't make you run away from anything, and you can't get drunk. When you get yourself drunk, you must be in a safe environment and don't let people worry.

hope everything goes well.

Mainly through liver catabolism.

Of course not, when nitric acid is usually stored, it is packed in hundreds of milliliters, and it takes a long time to completely decompose it by itself, and it will not be completely decomposed all at once.

Nitric acid will decompose in strong light, so it should be bottled in a brown bottle, but the decomposition is in trace amounts, nitrogen dioxide is reddish-brown in the air, and a small amount will make nitric acid appear yellow, the reaction formula 4Hno3 == Decomposition ===4NO2 +O2 +2H2O

The decomposition of nitric acid is generally only partially decomposed, and the amount of decomposition is very small, so the nitric acid in the industry sometimes appears yellow. It is impossible to completely decompose that.