Question

Отметь галочкой вещества для которых вода является растворителем акварельная краска v сахар v хлор туалетное мыло v нефть слюда золото керосин поваренная соль v кислород v жиры каучук А остальные не знаю

Answer 1

Акварельная краска, сахар,хлор,туалетное мыло, ,поваренная соль, кислород

Answer 2

Краска сахар туалетное мыло поваренная соль жиры

Answer 3

Substances for which water is a solvent:

- Aquamarine paint: Water is commonly used as a solvent for watercolor paints. Watercolor paints are made by combining pigments with a water-soluble binder, such as gum arabic. When water is added to the paint, it dissolves the binder and allows the pigments to spread and create vibrant colors. [[1]]

- Sugar: Water is a solvent for sugar. When sugar is added to water, it dissolves and forms a solution. This is commonly observed when making sweetened beverages or when sugar is added to recipes. The water molecules surround the sugar molecules, breaking the sugar's crystal structure and allowing it to dissolve. [[2]]

- Chlorine: Water can dissolve chlorine gas to form a solution of hydrochloric acid. This is commonly observed when chlorine is added to swimming pools to disinfect the water. The chlorine gas dissolves in the water and reacts with it to form hydrochloric acid, which helps kill bacteria and other microorganisms. [[3]]

- Soap: Water is a solvent for soap. Soap molecules have a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail. When soap is added to water, the hydrophilic heads interact with the water molecules, while the hydrophobic tails form micelles, which can trap and remove dirt and oil from surfaces. [[4]]

- Salt: Water is a solvent for salt. When salt (sodium chloride) is added to water, the water molecules surround the sodium and chloride ions, breaking the ionic bonds and allowing the salt to dissolve. This forms a solution of sodium ions (Na+) and chloride ions (Cl-) in water. [[5]]

- Oxygen: Water can dissolve oxygen gas. This is important for aquatic organisms, as they rely on dissolved oxygen in water for respiration. Oxygen dissolves in water through diffusion, and the concentration of dissolved oxygen in water can vary depending on factors such as temperature and pressure. [[6]]

Substances for which water is not a solvent:

- Oil: Water is not a solvent for oil. Oil is hydrophobic and does not mix with water. Instead, oil forms separate droplets or layers when added to water, as oil molecules are attracted to each other and repel water molecules. This is why oil and water do not mix and can be observed as separate phases. [[7]]

- Mica: Water is not a solvent for mica. Mica is a mineral that is insoluble in water. It does not dissolve or react with water, and therefore, water cannot be used as a solvent for mica. [[8]]

- Gold: Water is not a solvent for gold. Gold is a noble metal that is highly unreactive and does not dissolve in water. Gold is insoluble in water and does not form a solution when added to it. [[9]]

- Kerosene: Water is not a solvent for kerosene. Kerosene is an organic compound that is immiscible with water, meaning it does not mix or dissolve in water. Kerosene and water form separate layers when combined, with kerosene floating on top of the water. [[10]]

- Fats: Water is not a solvent for fats. Fats are hydrophobic molecules that do not mix or dissolve in water. Instead, fats form separate droplets or layers when added to water, as fat molecules are attracted to each other and repel water molecules. This is why oil and water do not mix and can be observed as separate phases. [[11]]

- Rubber: Water is not a solvent for rubber. Rubber is a polymer that is insoluble in water. It does not dissolve or react with water, and therefore, water cannot be used as a solvent for rubber. [[12]]

I hope this information helps! Let me know if you have any further questions.