Question

1. Дайте визначення суміші. Які суміші називаються однорідними, а які неоднорідними? Наведіть приклади. :, поопциої системи​

Answer 1

Ответ:

однорідна суміш це коли вони смішуються між собою а ті які не можна змішати ті називають неоднорідна.

Answer 2

Definition of a Mixture

A mixture is a combination of two or more substances that are physically combined and can be separated by physical means. In a mixture, the substances retain their individual properties and do not undergo any chemical changes. Mixtures can be made up of solids, liquids, or gases.

Homogeneous Mixtures

Homogeneous mixtures, also known as solutions, are mixtures that have a uniform composition throughout. In other words, the components of a homogeneous mixture are evenly distributed and cannot be easily distinguished. Examples of homogeneous mixtures include saltwater, sugar dissolved in water, and air.

Heterogeneous Mixtures

Heterogeneous mixtures are mixtures that do not have a uniform composition throughout. In a heterogeneous mixture, the components are not evenly distributed and can be easily distinguished. Examples of heterogeneous mixtures include a mixture of oil and water, a salad with various ingredients, and a mixture of sand and pebbles.

Examples of Homogeneous and Heterogeneous Mixtures

1. Homogeneous Mixture: Saltwater is a homogeneous mixture because the salt particles are evenly distributed throughout the water, and the mixture appears uniform. 2. Homogeneous Mixture: Air is a homogeneous mixture of gases, primarily nitrogen, oxygen, carbon dioxide, and other trace gases. These gases are uniformly distributed in the atmosphere. 3. Heterogeneous Mixture: A mixture of oil and water is a heterogeneous mixture because the oil and water do not mix completely. Instead, they form separate layers. 4. Heterogeneous Mixture: A salad with various ingredients, such as lettuce, tomatoes, cucumbers, and dressing, is a heterogeneous mixture because the different components can be visually distinguished. 5. Heterogeneous Mixture: A mixture of sand and pebbles is a heterogeneous mixture because the sand and pebbles can be easily separated based on their different sizes and properties.

These examples illustrate the difference between homogeneous and heterogeneous mixtures based on the uniformity of their composition and the ease of distinguishing their components.