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
Alexandra [31]
3 years ago
13

Aside from silica gel and alumina what other stationary phase can you use in chromatography​

Chemistry
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

Paper

Explanation:

In chromatographic separation, two different phases are important; a stationary phase and a mobile phase.

The stationary phase is the phase that does not move. Substances are separated based on how fast or slowly they move in the stationary phase.

The mobile phase is usually the solvent(or mixture of solvents) that carries the solutes through the stationary phase.

The stationary phase is usually composed of a porous material. Paper is a porous material. The mobile phase is trapped between the cellulose fibers of the paper and separation is achieved.

You might be interested in
List at least three scientific disciplines related to chemistry mentioned or alluded to in the article. The Ozone Hole
SVETLANKA909090 [29]

Answer: biology, climate Science, astronomy etc.

Explanation:

The scientific disciplines that are related to chemistry mentioned or alluded to in the article are:

• Biology: Biology is a natural science which studies living organisms, and this include their molecular interactions, evolution, physical structure, and chemical processes.

• Astronomy: Astronomy is the study of space, and the universe. In astronomy, the stars, planets, and galaxies are all studied.

• Climate science: Climate science is also referred to as climatology and it's the scientific study of climate.

7 0
3 years ago
A solution is classified as a weak base. Which of these could be the pH of the solution?
Pepsi [2]

Explanation:

The pH of a weak base falls somewhere between 7 and 10.

3 0
3 years ago
Number of grams in 4 mols of cu(no2)2
Drupady [299]
151.55 x 4 you have to add the molar masses for each element together.
6 0
3 years ago
Read 2 more answers
How many oxygen molecules are produced when 3.2×1022 molecules of water decompose?
snow_lady [41]
What this is confusing
8 0
3 years ago
Select the correct answer.
bazaltina [42]

C. Magma from venus mantle erupted as lava.

Explanation:

A volcano is a land form which results from the eruption of molten rocks (lava) on the surface. Volcanic rocks are a special type of igneous rock that forms when molten rock cools and solidifies on the surface.

For a planet like Venus which is presently not active and little to no movement occurs within the plates, the volcanisim must have occurred when the planet was relatively young and it must have been millions of years ago.

It is widely believed that Venus was geologically active in times past. Mantle generated lava must have solidified on the surface in times past to have formed the volcano.

Evaluating other options:

Impact of space objects on Venus would lead to the formation of a crater which is a depression on the surface. The rock would be mostly metamorphic.

If water was ever present in Venus, they would have produced sedimentary rocks instead. The erosive power of water is not high enough to cut through the crust. Also, water would not aid the formation of volcanoes.

Heat is not enough to from volcanoes. Other factors are also in play.

5 0
3 years ago
Other questions:
  • 4. What animal resources from other continents benefited South Americans?
    15·1 answer
  • A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure.
    12·1 answer
  • A solution is prepared by mixing 25.0 g H2O and 25.0 g C2H5OH. Determine the mole fractions of each substance.
    14·2 answers
  • 1. The mass of 6.45 x 1022 atoms C​
    8·1 answer
  • Metals exhibit
    13·1 answer
  • There are two different compounds of sulfur and fluorine.
    14·1 answer
  • What is the electron configuration using core notation for Ca2+?
    14·1 answer
  • Derek needs a tool that delivers 25.00 mL of a sodium hydroxide solution. What tool would be best for him to use?
    9·1 answer
  • Why is it commonly believed that carbon dioxide is responsible for global warming? Select 2 options.
    7·2 answers
  • PLEASE HELP ME!!!!!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!