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spin [16.1K]
4 years ago
6

Mixtures can be separated by filtration and distillation. Both methods take advantage of_______. A. differences in the chemical

properties of the mixtures's components. B. differences in the physical properties of the mixture's components. C. similarities in the chemical properties of the mixture's components. D. similarities in the physical properties of the mixture's components
Chemistry
1 answer:
Bumek [7]4 years ago
4 0
The process of filtration makes use of the differences between the particle size of the components in the mixture. The mixture is allowed to pass through a semi-permiable membrane which allows the smaller particles to pass through. On the other hand, the process of distillation makes use of the differences of the relative volatilities of the substances. Size and volatility are both physical properties. Thus, the answer to this question is letter B. 
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According to the kinetic molecular theory, the pressure of a gas in a container will increase if the
oksano4ka [1.4K]

According to the kinetic molecular theory, the pressure of a gas in a container will increase if the "number of collisions with the container wall increases".

<u>Option: A</u>

<u>Explanation:</u>

Pressure is characterized as force acting by area per unit. It is triggered by gas molecules bombarding on the container walls. Kinetic molecular theory suggests that gases are made up of large numbers of small particles with continuous movement. Here there are elastic collisions between gas particles and between particles and container walls. There are no forces of attraction among them because of the large spaces between the gas particles. The gas temperature relies on the particle's average kinetic energy.

3 0
3 years ago
A 10.0 mL sample of 0.75 M CH3CH2COOH(aq) is titrated with 0.30 M NaOH(aq) (adding NaOH to CH3CH2COOH). Determine which region o
Llana [10]

Answer:

5.75

Explanation:

Weak acid and strong base,

Make it a two part problem

The first will be Partial neutralization of the weak acid, while the second is the equilibrium and final pH

1.Parameters

HC2H3O2 =10mL x 0.75M = 7.5 mmol

NaOH =22mL x 0.30M = 6.6 mmol

R HC2H3O2 + OH- --> C2H3O2- + H2O

I 7.5 mmol 6.6 mmol 0 mmol ignore

C -6.6 mmol -6.6 mmol +6.6 mmol

E 0.9 mmol 0.0 mmol 6.6 mmol

2.) HC2H3O2 --> H+ + C2H3O2-

Initial concentrations

[HC2H3O2]: 0.9 mmol / 32mL = 0.0281M

[H+]:

[C2H3O2-]: 6.6 mmol x 32mL = 0.206M

Concentrations at equilibrium

[HC2H3O2]: 0.0281M - x

[H+]: [C2H3O2-]: 0.206M + x

If x is small and can be ignored except [H+]

Substitute and solve

1.3 x 10-5 = (x)(0.206)

(0.0281)

X= 1.77 x 10-6M => pH = 5.75

3 0
3 years ago
Draw a Lewis dot structure of the bonds between atoms in a molecule of this product. Use a - (dash) to represent a bonding pair.
Alina [70]
Ensure O has stable octet configuration

3 0
3 years ago
Crude oil has many applications once it has been distilled at a refinery. According to the diagram, what process is used to dist
Lynna [10]

Answer:

B) separation by boiling points

Explanation:

According to the diagram depicted, crude oil is separated into its different units using boiling points.

  • The boiling points of a compound is the temperature at which it begins to boil.
  • The process of fractional distillation is used in the oil industry to separate crude oil into its components.
  • When the boiling point of a oil fraction is reached, it becomes vaporized and rises within the column
6 0
3 years ago
3. Rebecca puts her backpack on a fan cart and turns the fan on. She then measures the speed each second afterward. At 10 second
Dmitrij [34]

Answer:

u just have to multiply 20x12 because its tells ya how fast the cart will be moving at 12 sec.

Explanation:because its tells ya how fast the cart will be moving at 12 sec.

7 0
3 years ago
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