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kvasek [131]
4 years ago
12

Which two physical properties allow a mixture to be separated by chromatography?

Chemistry
2 answers:
snow_tiger [21]4 years ago
7 0
<span> solubility and molecular polarity </span>
Tcecarenko [31]4 years ago
3 0

Answer:

The correct option is: (4) solubility and molecular polarity

Explanation:

Chromatography is an analytical technique which is used for the separation of various components in a given mixture.

In this process, the mixture to be separated is first dissolved in the mobile phase, which carries it through the stationary phase, thus leading to separation of the various components.

This differential separation is the result of the differential migration which is based upon the solubility and polarity of the individual components of of the given mixture.

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Explain in 2-4 sentences what the difference between climate and weather is
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Answer:

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Explanation:

6 0
3 years ago
Read 2 more answers
if 30.0L of oxygen are cooled from 200 degrees celsius to 1 degree celsius at constant pressure, what is the new volume of oxyge
Sergio039 [100]

Answer: 18.65L

Explanation:

Given that,

Original volume of oxygen (V1) = 30.0L

Original temperature of oxygen (T1) = 200°C

[Convert temperature in Celsius to Kelvin by adding 273.

So, (200°C + 273 = 473K)]

New volume of oxygen V2 = ?

New temperature of oxygen T2 = 1°C

(1°C + 273 = 274K)

Since volume and temperature are given while pressure is held constant, apply the formula for Charle's law

V1/T1 = V2/T2

30.0L/473K = V2/294K

To get the value of V2, cross multiply

30.0L x 294K = 473K x V2

8820L•K = 473K•V2

Divide both sides by 473K

8820L•K / 473K = 473K•V2/473K

18.65L = V2

Thus, the new volume of oxygen is 18.65 liters.

5 0
3 years ago
What is produced/made when our food is burned? ____________ + ____________ + __________ *
Pavel [41]

Answer:

do you have any vocabulary to help you with this or no

3 0
4 years ago
Which of the following is not found in a nucleotide?
Firlakuza [10]

Amino acid is not found in a nucleotide.

8 0
3 years ago
Group 2 in the penodic table contains the elements beryllium (Be), magnesium (Mg) , calcium (Ca) , strontium (Sf) )barium (Ba)an
mario62 [17]

Answer:

They are all alkali earth metals.

Explanation:

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3 years ago
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