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2009-12-14 22:06:03
2009-12-14 22:06:03

The answer is colloid.


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A homogeneous mixture, homo- means of the same. A homogeneous mixture is a mixture that cannot be separated in any way.

a true solution is a homogenous mixture which does not scatter light. A colloid has larger particles which do not settle out but do scatter light.

A homogeneous mixture containing particles that scatter light is a colloid.

The effect of scattering light by particles in a colloid mixture is called the Tyndall effect.

If a mixture scatters light and does not settle upon standing, it is not considered a suspension. It is considered a colloid.

A colloid is a mixture of a continuous phase and a dispersed phase in which the particles of the dispersed phase are large enough to scatter visible light but small enough to remain uniformly dispersed throughout the continuous phase for intervals of at least several hours, usually for many days.

A Suspension Here the particle size can be viewed by the naked eye. The particles display the tyndal effect where the particles are used as the medium for light rays. The particles also settle down after a short period of time and this mixture can be seperated using a funnel or evaporation(if it is an aqueous solution).

A solution is a homogeneous mixture whose particles are too small to reflect or scatter light. A colloid is a heterogeneous mixture containing particles that are small enough to stay suspended but large enough to scatter light.

NO! the particles can settle out over time, and block\ scatter light. but they CANNOT be soluble.

What this is saying relative to what you quote is that when the mixture is agitated, stirred if you will, then left without agitating, it will settle out. That means that you have to keep stirring the mixture for the particles to stay in suspension, that is to not settle out. If you put dirt into a glass of water it will settle out. If you keep stirring it will look uniform because it can't settle out. But when you stop stirring, the dirt being denser than the water will mostly settle out and given enough time most of it will settle out. But by observation means that you can see that the dirt is not settling out, which will be obvious if you have sufficient light shining on it or through it.

Butter is a colloidal solution as it shows Tyndall effect. Tyndall effect is scattering of beam of light by the particles of colloidal solution. The dispersed phase in butter is liquid and dispersion medium is solid. The colloidal solution is always a part of heterogeneous mixture. Therefore, Butter is a heterogenous mixture.

They are called "colloids". These have large particles that are suspended in a solution.

A colloid is a type of mechanical mixturewhere one substance is dispersed evenly throughout another. The particles of the dispersed substance are only suspended in the mixture, unlike a solution, where they are completely dissolved within. This occurs because the particles in a colloid are larger than in a solution - small enough to be dispersed evenly and maintain a homogenous appearance, but large enough to scatter light and not dissolve. Because of this dispersal, some colloids have the appearance of solutions. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium).

They can help identify colloids, a type of mixture in which one substance is dispersed evenly throughout another in the form of small particles, like milk, smoke, fog, etc. When you shine a bright light through a colloid, the light will scatter (like when you shine a flashlight through smoke), a phenomenon known as the Tyndall effect.

They are so small that they dont scatter light, Or never settle out.

lupins are dispersed by watering them and giving them light

It is a collid because it is a mixture that has particles large enough to scatter light beams.

colloid particles scatter light, giving the mixture of cloudy appearance

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