1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
blagie [28]
3 years ago
12

Which method separates mixtures according to the rates their components travel through a material? yhaoo answers?

Chemistry
2 answers:
garik1379 [7]3 years ago
7 0

Answer: chromatography

Explanation:

Chromatography : It is a type of separation process in which the liquid or gas is separated into components at different rate.

It involves passing the mixture through a stationary phase, which separates the analyte to be measured from other molecules.This is possible because the components which get adsorbed to the stationary phase moves slowly with the mobile phase whereas the components which do not get adsorbed to the stationary phase move faster with the mobile phase.

Hence, chromatography is a laboratory technique that is used to  separate mixtures according to the rates their components travel through a material

zhuklara [117]3 years ago
4 0
The hint you should note here is the 'travel through a material'. From this, you can think of separation techniques where the components have to go through a material. This could be filtration or membrane separation. However, in filtration, the rate is not a factor. You only have to separate solid from liquid. For membrane separation, you can separate two liquids based on their permeability to the membrane.
You might be interested in
What is the difference between a rock and a mineral ? Plz only (1-2 sentence) thx sm!
Tasya [4]

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

4 0
3 years ago
Consider the following reaction, which is spontaneous at room temperature. C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g) Is ΔS positive o
Ugo [173]

Answer:

∆H = negative and ∆S = positive.

Explanation:

The reaction given in the question is spontaneous at room temperature ,

hence ,

The the gibbs free energy , i.e. ,∆G will be negative for  spontaneous reaction

According to the formula ,

∆G = ∆H -T∆S

The value of ∆G can be negative , if  ∆H has a negative value and  ∆S has a positive value , because , T∆S  , has a negative sign .

Hence , the answer will be , ∆H = negative and ∆S = positive.

3 0
3 years ago
How many valence electron does sulfur
xxTIMURxx [149]

Explanation:

Sulfur has 6 valence electron

Valence electron shows group( in column)

8 0
3 years ago
Calculate the following quantity: molarity of a solution prepared by diluting 45.45 mL of 0.0404 M ammonium sulfate to 550.00 mL
dybincka [34]

Answer:

M_2=3.34x10^{-3}M

Explanation:

Hello!

In this case, since a dilution process implies that the moles of the solute remain the same before and after the addition of diluting water, we can write:

M_1V_1=M_2V_2

Thus, since we know the volume and concentration of the initial sample, we compute the resulting concentration as shown below:

M_2=\frac{M_2V_2}{V_1} =\frac{45.45mL*0.0404M}{550.00mL}\\\\M_2=3.34x10^{-3}M

Best regards!

5 0
3 years ago
Hydrogen is an element with two naturally occurring isotopes: 2 H and 3 H. This means that 2 H, which has a mass number of 2, ha
Dmitry_Shevchenko [17]

Answer:

TRUE.

Explanation:

Mass Number is the sum of protons and neutrons present in the nucleus of an atom. Isotopy is a phenonmenon that occurs when atoms of same elements have different mass number (Number of neutrons).

2H isotope has 1 proton and 1 neutron.

3H isotope has 1 proton and 2 neutrons.

This meeans 2H isotope has fewer neutrons when compared to the 3H isotope. The correct option is TRUE.

8 0
3 years ago
Other questions:
  • How many protons are found in element 14?<br><br>14<br><br>12<br><br>11<br><br>10​
    12·2 answers
  • If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass?
    14·2 answers
  • Which element is a metalloid? Check all that apply. selenium (Se) polonium (Po) silicon (Si) iodine (I) tin (Sn) antimony (Sb) p
    8·2 answers
  • This type of substance has a pH of 7. It will not change the color of litmus.
    12·1 answer
  • For this question, use the main assumptions of the Kinetic Molecular Theory of gases:
    15·1 answer
  • It is best to say that marine debris _______.
    15·2 answers
  • What is the correctly balanced chemical equation for the reaction of KOH and H2SO4
    13·1 answer
  • Please anyone help please I will pray for you
    15·1 answer
  • Magma generated by a hot spot rises through the rigid plates of the lithosphere and produces active volcanoes at the Earth's
    7·2 answers
  • What is the hypothetical van't Hoff factor of magnesium nitrate, Mg(NO3)2?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!