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To remove a substance from the surface of a liquid, you can use techniques such as skimming, decanting, or filtering. Skimming involves physically removing the substance from the surface with a tool like a spoon. Decanting involves carefully pouring the liquid to separate it from the substance at the surface. Filtering involves using a filter or sieve to separate the liquid from the substance.
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True or False The less surface area the faster a substance will change from a solid to a liquid?
False. The larger the surface area, the faster a substance will change from a solid to a liquid because more molecules are exposed to the surrounding environment, allowing for quicker heat transfer.
How is evaporation different from boiling water?
You boil a substance to evaporate the liquid.
What are the structures on the skin's surface that help remove liquid wastes?
The structures on the skin's surface that help remove liquid wastes are sweat glands. Sweat glands release sweat, which contains water, salts, and other waste products, to regulate body temperature and remove toxins from the body.
Is surface tension an intensive or extensive property?
Surface tension is an intensive property because it does not depend on the amount of the substance present. It is a measure of the strength of the forces between molecules at the surface of a liquid.
What is a tool with perforated surface used to remove impurities from liquids?
A sieve is a tool with a perforated surface used to remove impurities from liquids by straining them through the holes in the sieve. The impurities are left behind while the liquid passes through, resulting in a cleaner liquid.
What are surfactants?
A substance that tends to reduce the surface tension of a liquid in which it is dissolved.
What is a substance that flows on and below the surface of a liquid?
plasma
What is the only substance existing as solid liquid or gas at earths surface?
Water
What occur only on the surface of the substance?
Surface tension and surface adsorption occur only on the surface of a substance. Surface tension is the tendency of a liquid surface to shrink into the minimum surface area possible, while surface adsorption is the accumulation of molecules at the surface of a material.
What is the difference between adsorption and condensation?
Adsorption is the process by which molecules of a substance adhere to the surface of another substance, while condensation is the phase transition from gas to liquid when molecules lose energy and come together to form a liquid. Adsorption involves surface attraction, whereas condensation involves a change in physical state.
True or False The less surface area the faster a substance will change from a solid to a liquid?
False. The larger the surface area, the faster a substance will change from a solid to a liquid because more molecules are exposed to the surrounding environment, allowing for quicker heat transfer.
How are evaportion and boiling different?
Evaporation occurs at the surface of a liquid at any temperature as long as the substance is a liquid. Boiling occurs throughout the liquid and occurs at the boiling point.
Does sublimation and boiling both happen at the surface of the substance?
Sublimation occurs when a solid changes directly into a gas without passing through the liquid phase, and it typically happens at the surface of the substance. Boiling, on the other hand, is the process where a liquid changes into a gas throughout the entire volume of the liquid.
How is evaporation different from boiling water?
You boil a substance to evaporate the liquid.
When vaporization takes place on the surface of a liquid is called?
If vaporization takes place at the surface of a liquid, it is called evaporation. but when evaporation occurs throughout the substance it is called boiling.
Do Sublimation and boiling both happen at the surface of the substance.?
Sublimation occurs when a solid transitions directly to a gas without passing through the liquid phase, typically at the surface of the solid. Boiling, on the other hand, occurs when a liquid transitions to a gas throughout the bulk of the liquid, not just at the surface.
Is it true that sublimation and boiling both happen at the surface of the substance?
No, sublimation occurs when a solid turns directly into a gas without passing through the liquid phase, while boiling occurs when a liquid turns into a gas. Sublimation can happen at the surface of a solid, while boiling happens within the liquid as bubbles of gas form throughout the substance.
