The difference between organic matter and inorganic objects

1. Different definitions

Organic objects are carbon -containing compounds (carbon dioxide, carbon dioxide, carbonate, carbonate, carbonate, bicarbonate, metal carbides, cyanideExcept for oxides such as chemicals, thiocyanides) or general names of hydrocarbons and derivatives.

Inorganic compounds usually refer to compounds without carbon elements, but a few compounds containing carbon -containing elements, such as carbon dioxide, carbonate, carbon monoxide, carbonate, etc., are not organized, so such substances are also inorganic.

2. Elements are different

There are few elements of organic matter, such as C, H, 0, N, P, S, X (halogen: F, (CL, BR, I), etc.

Inorganic objects are mainly water and some inorganic ions, such as sodium ions, potassium ions, calcium ions, magnesium ions, chloride ions, sulfate ions, etc.

3. Different properties

Except for a few organic compounds, they can usually burn.Compared with inorganic objects, their thermal stability is poor, and the electrolyte is easy to decompose.The melting point of organic matter is low, generally does not exceed 400 C.Most organic matter is insoluble in water.The reaction between organic matter is slow, and methods such as catalysts often need to be added.Moreover, the reaction of organic matter is more complicated, and the inorganic objects are mostly easy to dissolve in water. The chemical reactions are simple, difficult to melt, and heat resistance.

4. Different types

There are many types of organic compounds and huge numbers (more than 30 million species are known, and they are still increasing at a rate of millions per year).

How to judge organic matter and inorganic objects

1. Chemical composition

Organic substances usually contain carbon (C) elements, and combine compounds with elements such as hydrogen (H), oxygen (O), nitrogen (n), sulfur (S), and phosphorus (P).Carbon is connected into a chain, ring or complex three -dimensional structure in organic matter in organic matter.

Inorgana may not contain carbon or carbon, but its properties and structures are closer to the inorganic system, such as carbonate, carbon monoxide, carbon dioxide, etc. These are inorganic compounds.

2. Molecular structure and composition

The molecular structure of organic matter is generally more complicated, with a large molecular weight, and carbon atoms often constitute the osteogy structure.

The molecular structure of inorganic objects is relatively simple, and the molecular weight can be large or small. In most cases, the carbon does not serve as a skeleton component.

5. Physical properties

Organic substances often have low melting points and boiling points, easy to volatilize, difficulty in soluble in water and easily soluble in organic solvents.

The melting point and boiling point of inorganic objects are high, and they are not easy to volatilize. They are usually easily soluble in water or exist in water in the form of ion.

6. Reactive and biological activity

Organic substances usually have more complex chemical response, and the response speed is relatively slow. A variety of types of reactions such as replacement, bonus, elimination, etc., and many organic matter has biological activity and can be absorbed by the organism.

The reactivity of inorganic objects is relatively stable and the response speed is fast. It mainly manifested as acid -base reactions, oxidation reactions, etc. Most inorganic objects do not have biological activity.The vast majority of inorganic objects in nature can be included in the four categories: oxide, acid, alkali and salt.

What are the organic mattertype

1As well asAccording to the type of chemical bond: organic matter can be divided into co -price bond organic matter and non -covalent keys.

2,It is composed of elements: organic matter can be divided into carbon organic matter, nitrogen organic matter, phosphorus organic matter, sulfur organic matter, oxygen organic matter, chlorine organic matter, etc.Essence

3,According to the molecular structure: organic matter can be divided into alkane, olefin, aromatic compounds, aldehydes and ketones, amide, alcohols, esters, acids, carboxylic acids, nitrate, sulfonate, etc.Essence

4,According to activity: organic matter can be divided into active organic matter and non -active organic matter.

5.According to molecular weight: organic matter can be divided into polymer organic matter and low molecular organic matter.

1. Harm of children's Telescope

Like everything, it depends on how to use it.

The regular Telescope has a precision requirements.

As long as you don't stop like watching the computer all day, you will not let go of eating and drinking water, then as long as it is a regular product, there will be no disadvantages if there is no damage.

Of course, there is another premise that the operation is correct.Do not use Telescope to aim at strong light sources, like the sun.

If children or adolescents, in growth and development, whether watching TV, computer, watching a long mirror or reading, should not be too long, and it is good to stop. Of course, you can go out to see the scenery, which is better.

2. How to choose a Telescope for children

1. Try to choose refracted Telescope.The refraction mirror is easy to operate, observed intuitive, easy to maintain, long use cycle, children can easily master operating skills when using, and it is easy to find and track when watching the target.

2. The diameter of the Telescope should not be greater than 100 mm.Many enthusiasts say that trying to choose a long -caliber Telescope, which is right for senior enthusiasts for conditions and licenses, but for observation needs that only cultivate children's interest, the caliber within 100 mm is enough because it is enough because the diameter is sufficient because it is enough because it is enough because it is enough because it is enough becauseThe caliber is not just expensive, but the Telescope is heavier.From the perspective of children's physical strength, it will reduce the usage rate of Telescopes. The fun of seeking stargazing is inevitable, and equipment is inevitable.The author recommends a Telescope with a caliber of 70 to 80 mm.

3. Try to choose a product with equatorial instrument.The equatorial instrument is not only easy to operate when tracking and looking for targets. What's more important is that it has a concept of redtrayal redness. As long as you master this concept, if you need to buy any other high -level and complex Telescope in the future, it will be lightly carried by the operation.Essence

4. With a 45 -degree positive prism.At present, the astronomical Telescope on the market is mostly equipped with a 90 -degree sky mirror.In this way, the imaging of the Telescope is upside down, and the upper and lower appearances have no effect on the astronomical observation.Because the celestial bodies in the Telescope are generally spherical or a point.Astronomical observation is generally at night. During the day, the moon and occasional moon are except the sun (not using a Telescope to directly observe the sun), leaving only the nature and human landscape around us.However, natural and human landscapes are also the goals of observation. There are also a lot of pleasure in observation. As long as the refractive astronomical Telescope is added with a 45 -degree positive prism, it becomes a multi -purpose equipment for viewing the landscape. Children can also from it.Get more happiness!

5. The price of the Telescope.Combined with the current Telescope market, the refraction mirror of 100 mm and ordinary optical glass is generally between 500 yuan and 3,000 yuan according to different workmanship, accessories, and metal materials (low -end inferior products are not in this column).Higher than this price, it is relatively professional.

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6. brand.When you buy a Telescope, you must choose a brand with a wide range of sales services and the public.