Pure water is colorless and odorless, why can it be seen?

Purified water is colorless and odorless and is a clear liquid.

Is the pure water you drink pure and how do we distinguish between pure water and mineral water.

If you say pure water, it's not pure, because it adds other things. For example, alcohol, it is a pure substance, which is a common name for ethanol, but if you say anhydrous alcohol, it is not pure, because the alcohol content of anhydrous alcohol is more than 99 percent, which is the same reason.

Directly say that water is not.

Pure, because water contains calcium and magnesium compounds, but to say distilled water, it is pure.

There is no absolute purity in the world, pure matter is only a concept in chemistry relative to the mixture, water generally contains impurities of various mineral ions, and the tap water in the water pipe generally contains cl ions, it should be used to disinfect the water plant again, so there will be residual cl ions. The purest water in the world is distilled water, but it is not absolutely pure. In the end, only the element is pure, and water is the compound!

No, because there are many substances in water, a substance that includes more than one substance is called a mixture, the mixture is not pure, ice water and distilled water are pure, because they only have one substance, there is a chemistry book in the ninth grade, you can also look it up, the book is more detailed.

Thank you for the trouble to adopt!

Under normal conditions, water is not pure. Water molecules can be electrolyzed into OH and H ions. In normal water, Ho2 and Oh,H coexist.

Water is not pure, and even pure water, as it is often called, is made up of many substances.

From a chemical point of view, it is basically difficult to find pure things in the world; Because many things are in a state of electrolytic equilibrium (whether solid or liquid or gas)!

Yes. Distilled water is a substance with a single chemical composition and a definite chemical formula, that is, H2O, which is usually obtained by distillation at a certain boiling point, and is pure. Whether it is pure or not depends mainly on whether its chemical composition is single rather than the type of element In chemistry problems, if there is no special difference in water, it refers to distilled water; However, when making a special distinction between water and distilled water, it is important to take into account that the water contains calcium, magnesium and other impurity ions, and "water" is no longer considered pure.

However, such cases are rare.

In this question, nitrogen, potassium permanganate, and ice water coexist as a single chemical substance, and the main component of marble is calcium carbonate and other components, so marble is a mixture. So B is the option, the former (ice-water mixture) is pure, and the latter (marble) is the mixture.

Yes. Pure water is pure.

Pro, the reasons why pure water has a taste are as follows: 1. At present, most bottled water manufacturers use ozone sterilization and disinfection, and ozone can be decomposed into oxygen within a short time, which is harmless to the human body. 2. Bottled water is not suitable for drinking immediately after filling with ozone, and can only be drunk after ozone is fully decomposed (8-16 hours).

However, some small enterprises and small water shops, when the turnover barrel is insufficient, the bottled water is immediately sent to the customer for drinking as soon as it is filled, which is an irresponsible practice. 3. It is recommended to change the water delivery shop or bottled water brand, and find a larger water store and a well-known local bottled water brand.

Water is pure.

Pure substance refers to a polymer composed of a single substance or a chemical compound, composed of a fixed, fixed physical and chemical properties, with a special chemical symbol, can be expressed by a chemical formula.

Introduction to Purity.

The microscopic concept of a pure substance is a substance made up of particles of the same kind. The macro concept is a polymer made up of one component. In the real universe, pure matter is only a theoretical state.

Pure substances have a fixed composition, have fixed physical and chemical properties, and have special chemical symbols, such as oxygen, nitrogen, potassium chlorate, etc. If a pure substance contains an isotope of an element (e.g. "water" has both H2O and D2O in it), then it is still pure.

Purities are divided into compounds: purities containing different elements, for example, carbon dioxide, iron oxides, potassium permanganate. Elemental: A pure substance composed of the same element, for example, hydrogen (H2), nitrogen (N2), oxygen (O2).

Purified water, referred to as pure water or pure water, is pure, clean, and does not contain impurities or bacteria, such as organic pollutants, inorganic salts, any additives and various impurities, and is the raw water that meets the sanitary standards of drinking water. The best space water and distilled water on the market are pure water.

In China's bottled drinking water market, there are mainly pure water, mineral water, spring water, natural water, mineral water, etc., due to the resource limitation of mineral water, spring water, etc., and pure water is the use of water in the urban water supply system that meets the national drinking water standards through a certain production process for production.

Therefore, it effectively avoids the invasion of various germs into the human body, can effectively and safely replenish water to the human body, has a strong solubility, and therefore has a strong affinity with human cells, and has the effect of promoting metabolism.

The reverse osmosis membrane that filters purified water removes bacterial impurities from the water, which can replenish the body with the water it needs and help excrete toxins from the body in a short period of time. Drinking water is mainly for hydration, not for the purpose of replenishing trace elements. The minerals and trace elements consumed by the human body are mainly from vegetables, fruits, rice, meat, etc., rather than from drinking water.

Purified water is not pure, it is a mixture.

Ice water mixture --- pure.

Is pure water pure--- chemically, when it is expressed as "pure water" or "distilled water", it is pure.

Pure water is generally understood as the so-called "pure water" in life, which refers to the relatively pure water obtained by the treatment of tap water, which still contains impurities and should be understood as a mixture.

Not necessarily. Some bottled water is branded with this brand, but not really pure water. Pure water is water with only H2O.

No, purified water contains inorganic salts.

Purified water is free of trace elements and minerals.

Purified water: It is water that meets the quality standards of drinking water as a raw material, and is treated by appropriate processing methods such as ion exchange method and distillation method, and can be directly drunk without any additives.

Advantages of pure water: high solubility, the strongest affinity with human cells, and the effect of promoting metabolism; It can eliminate the oiliness in the human digestive system and eliminate blood lipids on the blood vessels.

Disadvantages of purified water: Purified water filters out minerals and trace elements that are beneficial to the human body. Long-term drinking of purified water not only cannot supplement calcium, zinc and other trace elements, but the minerals that have been arubinized in the body will be absorbed and excreted by the purified water.

Purified water is free of trace elements and minerals.

Purified water cress ballot: It is water that meets the quality standards of drinking water and is treated by appropriate processing methods such as ion exchange method and distillation method, and can be directly drunk without any additives.

Advantages of purified water: high solubility of the hood, the strongest affinity with human cells, and the effect of promoting metabolism; It can eliminate the oiliness in the human digestive system and eliminate blood lipids on the blood vessels.

Disadvantages of pure water purification: Pure water filters out minerals and trace elements that are beneficial to the human body. Long-term drinking of purified water not only cannot supplement calcium, zinc and other trace elements, but the existing minerals in the body will be absorbed and excreted by pure water.

Pure matter is made up of a substance that can be represented by chemical symbols, whereas pure water has a lot of minerals in it. Common water in daily life is usually a mixture, and only "water" and "distilled water" are pure.

Water containing too many minerals in the body will cause unnecessary burden on the human body, and some minerals may not be absorbed by the human body, and if they accumulate in the body for a long time, it will directly affect human health.