Question

Даю 20 балів.Класифiкуйте на чисті речовини і суміші: бензин, граніт, дистильована вода, цуко природний газ, нафта, водень, азот, морська вода, золото​

Answer 1

Чисті речовини: Водень, Азот, Золото

Суміші: Бензин, Граніт, Дистильована вода, Цукор, Природний газ, Нафта, Морська вода

Answer 2

Classification of Substances:

To classify the given substances into pure substances and mixtures, we need to understand the definitions of these terms.

Pure Substances: A pure substance is a material that consists of only one type of particle. It has a fixed composition and distinct properties. Pure substances can be further classified into elements and compounds.

Mixtures: A mixture is a material that consists of two or more substances mixed together. The components of a mixture can be present in any proportion and can be separated by physical means.

Now, let's classify the given substances:

1. Benzin (Gasoline): Gasoline is a mixture of various hydrocarbons, such as octane, heptane, and other volatile compounds. Therefore, it is classified as a mixture.

2. Granit (Granite): Granite is a type of rock composed of different minerals, such as quartz, feldspar, and mica. Since it is composed of multiple substances, it is classified as a mixture.

3. Distylovana voda (Distilled Water): Distilled water is water that has been purified through the process of distillation, which involves boiling the water and collecting the condensed vapor. Distilled water consists of only water molecules and is therefore classified as a pure substance.

4. Tsuko prirodnyi haz (Natural Gas): Natural gas is primarily composed of methane (CH4) along with small amounts of other hydrocarbons. It is a mixture of different gases and is therefore classified as a mixture.

5. Nafta (Crude Oil): Crude oil, also known as petroleum, is a complex mixture of hydrocarbons. It contains various compounds, including alkanes, cycloalkanes, and aromatic hydrocarbons. Therefore, crude oil is classified as a mixture.

6. Vodeny (Hydrogen): Hydrogen is an element and consists of only hydrogen atoms. It is classified as a pure substance.

7. Azot (Nitrogen): Nitrogen is an element and consists of only nitrogen atoms. It is classified as a pure substance.

8. Morska voda (Seawater): Seawater is a mixture of water and various dissolved substances, including salts, minerals, and organic matter. It is classified as a mixture.

9. Zoloto (Gold): Gold is an element and consists of only gold atoms. It is classified as a pure substance.

In summary, the classification of the given substances is as follows:

Pure Substances: - Distilled Water - Hydrogen - Nitrogen - Gold

Mixtures: - Gasoline (Benzin) - Granite (Granit) - Natural Gas (Tsuko prirodnyi haz) - Crude Oil (Nafta) - Seawater (Morska voda)

Please note that this classification is based on the information provided and may vary depending on the specific context or composition of the substances.