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sweet-ann [11.9K]
2 years ago
11

A covalent chemical bond is one in which _____. a covalent chemical bond is one in which _____. outer-shell electrons of two ato

ms are shared so as to satisfactorily fill their respective orbitals electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms electrons from the same atom, but opposite spins, are paired outer-shell electrons of one atom are transferred to fill the inner electron shell of another atom
Chemistry
2 answers:
alexgriva [62]2 years ago
7 0

A covalent chemical bond is one in which outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals.

<h2>Further Explanation;</h2><h3>Chemical bond  </h3>

A bond is a type of force that is formed between atoms of different through the sharing or transfer of electrons.

<h3>Types of chemical bonds.</h3><h3>Covalent bond  </h3>
  • This is a type of bond that is formed between non-metal atoms. It is formed as a result of sharing electrons between non-metal atoms.
  • Outermost electrons are shared between the atoms involved in bonding so as each atom attains a stable configuration.
  • When atoms involved contribute an equal number of electrons to the bond formation, the type of bond is known as a covalent bond
  • A covalent bond may be a dative covalent bond when the shared electrons come from one atom.
<h3>Ionic bond  </h3>
  • This is a type of bond that occurs between metal ions and non-metal ions. Ionic bond occurs as a result of the transfer of electrons from one metal atom to another non-metal atom.
  • After the transfer of electrons, metal atom loses an electron to form a cation while the non-metal atom gains electrons to form an anion.
<h3>Polar covalent bonds </h3>
  • Polar covalent bonds involve uneven sharing of electrons between a non-metal atom and another non-metal atom.
  • Electrons spend more time around one of the atoms involved in bonding than the other atom.
  • The uneven distribution of electrons or differences in electronegativity between atoms bonded to each other is referred to as a polar bond.
  • Examples of polar covalent molecules, S-F, O-F, etc.
<h3>Non-polar covalent bonds </h3>
  • It is a type of covalent bodn in which two atoms share a pair of electrons equally with each other.
  • The electronegativity of the two atoms involved in non-polar covalent are equal.
  • Non-polar covalent bonds involves non-metal non-metal atoms.
  • Examples of non-polar covalent molecules includes; F-F, H-H, etc.

Keywords: Polar covalent, non-polar covalent, ionic bonds, covalent bonds.

<h3>Learn more about:</h3>
  • Chemical bonds: brainly.com/question/1462731
  • Ionic bonds: brainly.com/question/1462731
  • Covalent bonds: brainly.com/question/1462731
  • Polar covalent bonds: brainly.com/question/1462731
  • Non-polar covalent bond: brainly.com/question/1462731

Level: High school  

Subject: Chemistry  

Topic: structure and bonding  

Sub-topic: Covalent bond

PtichkaEL [24]2 years ago
5 0

Answer:

            A covalent chemical bond is one in which <u>outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals</u>.

Explanation:

                   Covalent bonds are formed between two atoms having their electronegativity difference less than 1.7. In this type of bonding the valence electrons of one atoms forms molecular bond with the valence electrons of another atom. The electrons are mutually shared.

                   Covalent bond can be non-polar as for example formed between hydrogen and carbon atoms.

                   Also, covalent bond can be polar in nature as that formed between hydrogen and chlorine atoms because the chlorine atom is more electronegative and hence attracts the electrons more towards itself making density of electrons less on hydrogen atom.

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Rank the following amine derivatives from highest acidity (lowest pKa value) to lowest acidity (highest pKa value).
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Answer:

anilinium ion > ammonium ion > amide > aniline > secondary amine

Explanation:

Acidity of amine derivatives can derived from their pKa values.

The rule of thumb for acidity with relation to pKa values is that:

As the pKa decreases the acid strength increases and the conjugate base decreases. Similarly, as the pKa increases, the acid strength decreases and the conjugate base increase.

Hence the stronger the acid , the  lower pKa value  and the weaker the acid , the stronger the pKa value.

So the pKa value for anilinium ion = 4.6

ammonium ion = 9.4

Amide = 15

Similarly, for aniline and secondary amine, in order to determine the derivative with the higher acidity, we will consider the electron withdrawing substituent group.

The more difficult the electron are being withdraw from the electron withdrawing substituent , the more acidic the compound.

In aniline , the stabilized benzene ring attached to NH₂ makes it a less electron withdrawing group compared to the straight chains structure found in secondary amine where electron are easily withdraw by nucleophilic substitution reactions.

Thus, from highest acidity (lowest pKa value) to lowest acidity (highest pKa value).

the amine derivatives ranking is as follows:

anilinium ion > ammonium ion > amide > aniline > secondary amine

8 0
2 years ago
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Answer:

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Answer:

The Michaelis‑Menten equation is given as

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Determine the number of neutrons in an atom of Rg-272.
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In order to find the number of neutrons in the atom,

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6 0
2 years ago
You have a 16.0-oz. (473-mL) glass of lemonade with a concentration of 2.66 M. The lemonade sits out on your counter for a coupl
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<u>Answer:</u> The new concentration of lemonade is 3.90 M

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}     .....(1)

Molarity of lemonade solution = 2.66 M

Volume of solution = 473 mL

Putting values in equation 1, we get:

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Moles of lemonade = 1.26 moles

Volume of solution = (473 - 150) mL = 323 mL

Putting values in equation 1, we get:

\text{New concentration of lemonade}=\frac{1.26\times 1000}{323}\\\\\text{New concentration of lemonade}=3.90M

Hence, the new concentration of lemonade is 3.90 M

7 0
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