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Seaside cities tend to be higher because the algae in the ocean produce about 36 billion tonnes of oxygen per year, which is 3.4 percent of the atmospheric oxygen content and absorb about 2.3 percent of the atmospheric carbon dioxide. Generally, the southeast coast is suitable for human life, the weather is warm, the oxygen content is the highest, and the longest life expectancy in China is Guangdong, because they are not only the environment, but also the most healthy in life.
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Enshi and Daxinganling Oxygen is the most suitable for human society to habit.
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Choose the countryside, the air is clear, there is no pollution in the city, the quiet roads are not noisy in the city.
But the abundance of mosquitoes can be very annoying, and the roads in the village can have a lot of animal droppings that you can step on unscrupulously.
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Guangxi Bama. The mountains and the earth stand up, creating a health garden. Ruiyou Fairy, Xiaoyao Fushou Village. ”
Jinggang Mountain, Jiangxi.
For a long time, Lingyun has been cautious and quiet, and he has returned to Jinggang Mountain. ”
Jiuzhaigou, Sichuan.
The cypress covered forest is mirrored in the secluded pool, and the divine spring moistens the heaven and earth".
Zhangjiajie, Hunan.
Three thousand peaks and eight hundred waters".
Anhui Shitai. The clear stream clears my heart, and the water is different and filial piety takes all the water".
Qingcheng Mountain, Sichuan.
Ning Pingming is desperate to beg for poverty, and he will go to Qingcheng to look at it once."
Gupo Mountain, Hezhou, Guangxi.
Thousands of peaks, Gupo Mountain, layers of mist; Talking about thousands of waters, Bixi Lake is vast. ”
Kunyu Mountain, Yantai, Shandong.
The defeated scum ancestor of the mountains of the sea".
Jiangxi Longhu Mountain.
Chisel open the wind and moon immortal land, and occupy the smoke and clouds. ”
Negative oxygen ions can promote the synthesis and storage of vitamins in the human body, strengthen and activate the physiological activities of the human body, and also have super antioxidant capacity, so it is also vividly called "air vitamin".
Negative oxygen ions can not only make us breathe smoothly and be full of energy, but also have a very good beauty effect on us, so many people like to stay in places with high negative oxygen ion content.
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Under normal circumstances, the oxygen content in the air is about 21%, if it is lower, people will become breathing faster, feel tired and weak; Below 12%, breathing becomes difficult; Below 10%, vomiting, inability to move, loss of consciousness and even death can occur.
The oxygen content of the air is greater than that of the so-called oxygen-rich environment, the so-called "full is lost", the oxygen content in the air is not the higher the better, and increasing the oxygen concentration within a certain range can make the human body feel more comfortable, but beyond a certain limit, there will also be negative effects. Generally speaking, when the oxygen content of the air is greater than that, it is considered an oxygen-rich environment.
Precautions for indoor air detection in winter
The indoor air environment testing standards stipulated by the state include "GB T 18883 Air Quality Standard" and "GB 50325-2020 Code for the Control of Indoor Environmental Pollutants in Civil Buildings". GB T 18883 is a recommended standard, a guiding standard, and a healthy standard for human settlements, which is not legally binding on builders, decorators, and furniture manufacturers.
For example, indoor high temperature and dry weather directly lead to indoor formaldehyde release 20 to 30 higher than usual, and formaldehyde is inactive at low temperatures.
The above content refers to Encyclopedia - Oxygen Content.
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The oxide with the highest oxygen content is: hydrogen peroxide, 94.1 percent.
Hydrogen peroxide, pure hydrogen peroxide is a light blue viscous liquid, miscible with water in any proportion, is a strong oxidant, aqueous solution commonly known as hydrogen peroxide, is a colorless transparent liquid. Its aqueous solution is suitable for medical wound disinfection, environmental disinfection and food disinfection.
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Hydrogen peroxide, also known as hydrogen peroxide (H2O).
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Hello, if you are asking about what you learned in junior high school, it should be hydrogen peroxide (hO) and in fact there are two oxides with higher oxygen content than hydrogen peroxide, here are two examples:
Hydrogen superoxide (HO).
Hydrogen ozonation (HO).
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H2O H2O2 "Hydrogen Peroxide" is also called superoxide acid, commonly known as hydrogen peroxide. C4O3 "Carbon Oxidation and Matter" contains 50% oxygen
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The oxides with the highest oxygen content are, of course, potassium peroxide, potassium ferrate, etc. Both products can oxidize carbon dioxide into oxygen limbs, which is used to produce oxygen from potassium peroxide on the International Space Station. A large amount of atomic oxygen can be released in the water, and it becomes oxygen after it comes out of the water.
Oxide is a compound in which ashwagandha is composed of two elements, one of which is oxygen.
Oxide classification
According to different standards, there are several classifications of oxides, such as metal oxides if another element in the constituent element is a metal element; If it is a non-metal, it is a non-metallic oxide. According to whether salt is formed with water, and the type of salt generated, it can be divided into nine categories: acid oxide, basic oxide, amphoteric oxide, non-salt oxide, pseudooxide, peroxide, superoxide, ozone and similar oxide.
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Hydrogen peroxide. Peroxide macro hydrogen is an inorganic compound with the chemical formula H2O2. Pure hydrogen peroxide is a light blue viscous liquid, miscible with water in any proportion, is a strong oxidizing agent, aqueous solution is commonly known as hydrogen peroxide, is a colorless transparent liquid.
1. Oxidation.
Hydrogen peroxide is highly oxidizing and is a very strong oxidizing agent.
2. Reducibility.
It reacts with strong oxidants such as chlorine and potassium permanganate to produce oxygen.
3.In 10ml of 10% sample solution, 5ml of dilute sulfuric acid test solution (TS-241) and 1ml of potassium permanganate test solution Sun Hao (TS-193) were added. Bubbles should occur, and the purplish-red color of potassium permanganate disappears. It is acidic to litmus and explosive in case of organic matter.
4.Take 1g of sample (accurate to, dilute with water to. take 25ml of this solution, add 10ml of dilute sulfuric acid test solution (TS-241) and titrate with potassium permanganate. per milliliter. Potassium permanganate is equivalent to hydrogen peroxide (H2O2).
5.In case of organic matter, oxygen and water are liberated by heating, and the reaction is violent in case of chromic acid, potassium permanganate, metal and carbonic acid. In order to prevent decomposition, trace amounts of stabilizers such as sodium stannate, sodium pyrophosphate, and so on can be added.
6.Hydrogen peroxide is an extremely weak acid, H2O2 = (reversible) = H++Ho2- (bond Kai Ka = , so the peroxide of the metal can be seen as its salt.
7.Pure hydrogen peroxide is very unstable and violently decomposes into water and oxygen when heated to 153°C.
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The oxides with the highest oxygen content are of course potassium peroxide, potassium ferrate, etc. Both products oxidize carbon dioxide into oxygen, which is used to produce oxygen from potassium peroxide on the International Space Station. A large amount of atomic oxygen can be released in the water, and it becomes oxygen after it comes out of the water. ”
In a narrow sense, organic compounds are mainly composed of carbon and hydrogen, and are compounds containing carbon, but do not include carbon oxides (carbon monoxide, carbon dioxide), carbonic acid, carbonates, cyanide, thiocyanide, cyanate, metal carbides, and some simple carbon-containing compounds (such as SiC).
When the surface layer is exposed to sunlight, the microphytes inside can photosynthesize and release blind O2, and some of this O2 is dissolved in the seawater, so the oxygen content of the surface layer of the seawater is the highest. (Sunlight does not shine in the deep sea).
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Go to the Internet to search for China's Liangdu You will know where the coolest place in China is in summer This is the only city named after the climate in the country's Liangdu Liupanshui in China It is false to blow too much on the Internet Speaking with facts, this is not the only city in the country that can hold an international marathon in summer Also known as the summer of 19 degrees Southern Ice and Snow City You can go skiing in winter There is Meihuashan International Ski Resort The lowest latitude in China International Ski Resort So it is also known as Southern Ice and Snow City.
It should be Shanghai or Hong Kong.
The economy of the three provinces competes with Europe.