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andrezito [222]
3 years ago
10

Which statements are true of heterogeneous mixtures? 1) They settle out. 2) The proportions of solute to solvent may vary. 3) Th

e solute is evenly distributed throughout. 4) They are composed of two solvents and two solutes. 1 and 2 2 and 4 3 only 2 only
Chemistry
1 answer:
VARVARA [1.3K]3 years ago
3 0

Answer:

1 and 2

Explanation:

Heterogeneous mixtures are basically refers to any solution that is not uniform in composition. A typical example is a solution of water and sand.

1)

By nature, they settle out. The denser component of the solution falls down and the lighter component stays up.

2)

The proportions may vary as it is a mixture. There is no fixed ratio of solute t solvent.

3)

The solute is not evenly distributed and this is why it is referred to as a non uniform mixture.

4)

They do not necessarily contain teo solvent and two solutes.

The correct options are option 1 and option 2 only.

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Answer:

<em>Gases tend to deviate from ideal gas law at </em><u><em>high pressures and low temperatures.</em></u>

Explanation:

The main statements from molecular kinetic theory to describe an ideal gas is that 1) the gas particles occupy a neglictible fraction of the total volume of the gas, and 2) there is not force of attraction between gas particles.

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Since the temperature is directly related to the kinetic energy, and the latter with the movement of the particles (average speed), low temperatures lead to the molecules being less independent of each other, i.e. the forces between the molecules will count more . This fact constitutes a violation of the second principle established in the first paragraph.

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You can read more about ideal and real gases behavior on brainly.com/question/12449772

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