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german
3 years ago
12

What type of reaction is shown here?

Chemistry
1 answer:
jek_recluse [69]3 years ago
4 0

Answer:

A:Double replacement

Explanation:

Hopefully this helps

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Aside from silica gel and alumina what other stationary phase can you use in chromatography​
Svetlanka [38]

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.

7 0
3 years ago
PLEASE ANSWER ASAP:
sergij07 [2.7K]

Answer:

  • <u><em>True</em></u>

Explanation:

<em>Heat</em> is a kind of energy.

The <em>kinetic theory </em>relates the heat with the movement of the particles: the more the particles move, the larger the kinetic energy of the system. The kinetic theory states that heat is the kinetic energy of the particles, atoms or molecules, in a substance, that is transferred from a substance at higher temperature to other substance at lower temperature.

Based on that principle, the kinetic theory explains the changes of phases of the substances in terms of the motion of the particles: the hotter an object the faster the particles move, the more energetic the particles are, and they occupy more space. Thus, when a solid is heated, the particles move faster and it can pass to liquid or gaseous state.

7 0
3 years ago
Write the formula for calcium chloride​
Sauron [17]

CaCI2 is  for calcium chloride

7 0
4 years ago
What is produced when chlorine is mixed with ethane?
Airida [17]
Chloroethane is the answer
7 0
3 years ago
Preparation of ammonia gas<br>​
Makovka662 [10]

Answer:

Ammonia is easily made in the laboratory by heating an ammonium salt, such as ammonium chloride NH4Cl with a strong alkali, such as sodium hydroxide or calcium hydroxide.

The gas may also be made by warming concentrated ammonium hydroxide.

Explanation:

2NH4Cl + Ca(OH)2 → CaCl2 + 2H2O + 2NH3(g)

7 0
2 years ago
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