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Zina [86]
3 years ago
13

why is often necessary to follow extensive purification procedures in the isolation of organic compounds?​

Chemistry
1 answer:
GREYUIT [131]3 years ago
6 0

To remove impurities

<u>Explanation:</u>

  • There are different substances present in  an organic compound. If an organic compound contains different substances then there are some physical or chemical methods for the process of isolation, so that we will get different substances from the organic compound, which may or may not contain impurities.
  • To get rid of impurities after the isolation process purification process has to be done, so that we will get a purified substance from an organic compound.
  • Purification may be done using the method of sublimation, distillation and so on.
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Which properties determines the element that an atom Is?
balandron [24]

Answer:

The answer would be C. Number of protons in the atom.

Explanation:

On the periodic table, you see the element, with a big number at top, and a small number below the element name/abbreviation.

The big number is the amount of protons of the atom, which define each atom. The smaller number represents the atomic mass of the atom.

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A bowling ball is let go from a height of 30 cm. What is the velocity of the
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Answer:

The answer is 0.30 m/s

Explanation:

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Discribe how continents and oceans are carried on tectonic plates
Vanyuwa [196]
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3 years ago
Sort each of the following elements by effective nuclear charge, Zeff, from smallest to largest:
krek1111 [17]

Answer:

Rb = +1 , Sr = +2, In= +3,  Sn = +4, Sb= +5

Explanation:

Formula:

Zeff = Z - S

Z = atomic number

S = number of core shell or inner shell electrons

For Sn:

Electronic configuration:

Sn₅₀ = [Kr] 4d¹⁰ 5s² 5p²

Zeff = Z - S

Zeff = 50 - 46

Zeff = +4

For Rb:

Electronic configuration:

Rb₃₇ = [Kr] 5s¹

Zeff = Z - S

Zeff = 37 - 36

Zeff = +1

For Sb:

Electronic configuration:

Sb₅₁ = [Kr] 4d¹⁰ 5s² 5p³

Zeff = Z - S

Zeff = 51 - 46

Zeff = +5

For In:

Electronic configuration:

In₄₉ = [Kr] 4d¹⁰ 5s² 5p¹

Zeff = Z - S

Zeff = 49 - 46

Zeff = +3

For Sr:

Electronic configuration:

Sr₃₈= [Kr]  5s²

Zeff = Z - S

Zeff = 38 - 36

Zeff = +2

8 0
3 years ago
Why is a bannana curved?
Yanka [14]

Answer:

Explanation:

It's because of the sun! Bananas are curved so they can retrieve sunlight.

7 0
2 years ago
Read 2 more answers
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