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Mekhanik [1.2K]
3 years ago
13

In chromatography why is it important to remove the strip of paper until it reaches the end​

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
6 0
<h3>Answer:</h3>

\:

  • Because the water doesn't have to reach all the way to the top.
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Select the correct answer. Why were industrial and agricultural surpluses a problem for the US economy? A. The United States did
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the correct answers among them is C

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15. What is true about concentration of a solution? *
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<h3>Answer:</h3>

A saturated solution is a chemical solution containing the maximum concentration of a solute dissolved in the solvent.

<h3>Explanation:</h3>
  • A solution is made by dissolving a solute in a solvent.
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  • Solution may either be saturated or unsaturated.
  • Unsaturated solution is a solution that can dissolve more solute upon addition because it has not reached saturation.
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3 years ago
What is the coefficient in this chemical formula? 3C6H12O6
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Answer:

C-3

Explanation:

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3 years ago
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If the oxidation number of an atom decreases, the atom has undergone oxidation.
Bumek [7]

Oxidation is a process when an atom, a group of atoms, or an ion loses electrons.

For example,

Cu⁰ -------> Cu⁺² + 2e⁻. This is an oxidation process.

As we can see an oxidation number was 0, and it became +2. The oxidation number is increased. Oxidation number of the atom, when an atom has undergone oxidation, increases.

So, answer is b.False.

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3 years ago
An element has two isotopes, A and B, with mass numbers of 32.0 and 33.0 respectively. The relative atomic mass is 32.3. The per
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d) A - 70% B - 30%

Explanation:

If x is the abundance of A, and 1−x is the abundance of B, then:

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32x + 33 − 33x = 32.3

33 − x = 32.3

x = 0.7

The abundance of A is 70%, and the abundance of B is 30%.

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