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3 years ago

In order to participate in a hydrogen bond, a hydrogen atom must be covalently bonded to one of three elements. What are they?

Chemistry

1 answer:

Lyrx [107]3 years ago

5 0

Oxygen, Nitrogen and Fluorine

Explanation:

In order to participate in a hydrogen bond, a hydrogen atom must be covalently bonded to one of the oxygen, nitrogen and fluorine.

Hydrogen bonding is a type of dipole - dipole attraction between two specie.
It is an intermolecular force of attraction.
This bond type forms when hydrogen is bonded to a more electronegative atom.
These atoms are oxygen, nitrogen and fluorine
These species draws the electron shared more to themselves and leaves a partial positive charge on the hydrogen and a negative charge on them.
The electrostatic force of attraction between the hydrogen of one molecule and the O/N/F of another molecule cause the formation of hydrogen bonds.

learn more:

Hydrogen bonding brainly.com/question/10602513

#learnwithBrainly

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A 3.96x10^-24 M solution of compound A exhibited an absorbance of 0.624 at 238 nm in a 1.000-cm cuvet; a blank solution containi

viktelen [127]

Actual question from source:-

A 3.96x10-4 M solution of compound A exhibited an absorbance of 0.624 at 238 nm in a 1.000 cm cuvette. A blank had an absorbance of 0.029. The absorbance of an unknown solution of compound A was 0.375. Find the concentration of A in the unknown.

Answer:

Molar absorptivity of compound A = $1502.53\ {Ms}^{-1}$

Explanation:

According to the Lambert's Beer law:-

$A=\epsilon l c$

Where, A is the absorbance

l is the path length

$\epsilon$ is the molar absorptivity

c is the concentration.

Given that:-

c = $3.96\times 10^{-4}\ M$

Path length = 1.000 cm

Absorbance observed = 0.624

Absorbance blank = 0.029

A = 0.624 - 0.029 = 0.595

So, applying the values in the Lambert Beer's law as shown below:-

$0.595=\epsilon\times 1.000\ cm\times 3.96\times 10^{-4}\ M$

$\epsilon=\frac{0.595}{3.96\times 10^{-4}}\ {Ms}^{-1}=1502.53\ {Ms}^{-1}$

<u>Molar absorptivity of compound A = $1502.53\ {Ms}^{-1}$ </u>

4 0

4 years ago

Electron configuration 1525 2p63S3pô 4S 3D 10 4pl

Nana76 [90]

Answer:

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Explanation:

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3 years ago

A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white crystalline substance B an

attashe74 [19]

Answer:

A and B as well C are the compounds.

Explanation:

A seems to be a compound, very least, it appears to contain carbon and oxygen.
C seems to be a compound, containing respectively oxygen as well as carbon.
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So that the above is the correct answer.

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3 years ago

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Dima020 [189]

Reactants are carbon dioxide and water, the products are glucose and oxygen. Don't know for sure what the yield is represented with, so, I can't help you with that.

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3 years ago

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NARA [144]

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3 years ago

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