Do heterogeneous mixtures settle out by themselves?

Answer 1
  • Yes , the heterogeneous mixtures settle out by themselves.

HETEROGENEOUS MIXTURES are those in which boundaries form as a result of improper mixing between two substances, which may or may not be pure substances.

As an illustration:

combination of water and sand

combination of sugar and salt, etc.

As a responsible student, you should carry out the experiment by creating each of these mixtures on your own in real life. Only then will you understand that when creating heterogeneous mixtures, they settle out on their own without any shaking.

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Answer 2

It depends on the type of heterogeneous mixture......

Heterogeneous mixtures are those that contain more than one separate phase, so either solids dispersed into liquids, or two immiscible liquids, or two or more powdered solids, for example.

Some of these will settle out by themeslves if left undisturbed, for example if you shake up a container of oil and water it will initially form a water/oil dispersion, but on standing the oil and water will settle out into two layers.

Similarly, if you stir up a mixture of powdered clay and water it forms a solid in water dispersion, but left standing the clay sediments out to form a separate layer at the bottom of the container.

However, some heterogeneous mixtures do not settle out by themselves. For instance colloidal dispersions. Examples include milk (water/fat dispersion, stablised by proteins), pigmented inks (pigment dispersed in ink solvent), certain types of emulsion pants. Colloidal dispersions do not spontaneously settle out due to the dispersed phase being stabilsed so that coagulation or coalescence is made unfavourable due to steric or electrostatic repulsion.

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Answer 3

Indeed, because gravity acts on the various phases in a heterogeneous mixture, many of them can settle out on their own over time.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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