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Brilliant_brown [7]
3 years ago
15

Could someone help with question 2 please

Chemistry
1 answer:
QveST [7]3 years ago
3 0

Answer:I need help but I don't have points

Explanation:

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Astrology is not a science, astronomy is a science.
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When sodium reacts with Iron(II)and chloride iron metal and sodium chloride are formed what are the coefficient used in this rea
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When sodium metal reacts with iron (II) chloride, iron metal and sodium chloride are formed. - 2 Na(s) + Fella (s) → Fe (s) + 2Naci.
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A cell is put into a liquid and remains its original size. What is the best conclusion that can be drawn from this observation?
alukav5142 [94]
Hello!

Since the cell remains its original size, it stands to reason that the concentration between the cell and the liquid is the same.

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The retention factor, Rf, is not
vovikov84 [41]

The statement is false because the retention factor is affected by temperature,  amount of material, or time.

Chromatography is a method of separation which involves the use of two phases; a stationary phase and a mobile phase.

The stationary phase is usually the adsorbent column while the mobile phase is the eluting solvent containing the mixture.

The retention factor is the ratio of the distance moved by the mixture to be separated to the distance moved by the solvent alone.

The retention factor depends on the degree of interaction between the mobile phase and the stationary phase. This interaction may be affected by temperature,  amount of material, or time.

In summary, the retention factor, Rf, is affected by temperature,  amount of material, or time because it depends on the interaction of the mobile phase and the stationary phase.

Learn more: brainly.com/question/10104232

3 0
2 years ago
What will be the the net ionic equations for the following ones:- a) AgNO3 + KCl b) Ni(NO3)2 + Na2S c) CaCl2 + Na2CO3. 2) Write
Arte-miy333 [17]

The molecular equation is

<span><span>AgNO3(aq]</span>+<span>HCl(aq]</span>→<span>AgCl(s]</span>+<span>HNO3(aq]</span></span>

How did I get this equation? Consider each reactant or product separately:

1 mole of <span>AgNO3</span> contains 1 mole of <span>Ag+</span> and 1 mole of <span>NO<span>−3</span></span> ions.

<span><span>Ag<span>+(aq]</span></span>+<span>NO<span>−3(aq]</span></span>+<span>H<span>+(aq]</span></span>+<span>Cl<span>−(aq]</span></span>→<span>AgCl(s]</span><span>⏐⏐↓</span>+<span>H<span>+(aq]</span></span>+<span>NO<span>−3(aq]</span></span></span>

The net ionic equation is

<span><span>Ag<span>+(aq]</span></span>+<span>Cl<span>−(aq]</span></span>→<span>AgCl(s]</span><span>⏐⏐<span>↓

</span></span></span>

<span><span><span>Now try some of the others on your own</span></span></span>

6 0
3 years ago
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