Question

Можно ли встретить в природе 100% чистые вещества?И почему?

Answer 1

Думаю, что нет. Так как любое вещество, предмет имеет свою степень загрязнения. даже когда моем руки с мылом, все равно какая то грязь остается 

Answer 2

Can 100% pure substances be found in nature?

In nature, it is extremely rare to find substances that are 100% pure. Most substances found in nature are mixtures of different elements or compounds. Pure substances are those that are made up of only one type of atom or molecule and have a uniform composition throughout.

Pure substances can be classified into two categories: elements and compounds.

- Elements are substances that cannot be broken down into simpler substances by chemical means. Examples of elements include oxygen, hydrogen, carbon, and gold. While elements can be found in nature, they are often mixed with other elements or compounds.

- Compounds are substances that are composed of two or more different elements chemically combined in fixed proportions. Examples of compounds include water (H2O), salt (NaCl), and carbon dioxide (CO2). Compounds can also be found in nature, but they are often mixed with impurities or other compounds.

Even substances that are considered pure in a laboratory setting may contain impurities when found in nature. These impurities can come from the environment or the production process. For example, natural water sources may contain dissolved minerals and gases, making them impure compared to distilled water.

It is important to note that the concept of purity is relative. In practical terms, substances are often considered pure if they meet certain standards or specifications for a particular application or industry. For example, pharmaceutical companies may have specific purity requirements for drugs, and industrial processes may require high-purity materials for manufacturing purposes.

In summary, while it is possible to find substances that are relatively pure in nature, it is rare to find substances that are 100% pure. Most substances found in nature are mixtures of different elements or compounds, and even substances considered pure in a laboratory setting may contain impurities when found in nature.