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3 years ago

The reaction of a Lewis acid with a Lewis base would most likely be accompanied by an increase in which item?

Chemistry

2 answers:

Strike441 [17]3 years ago

8 0

Answer:

The correct answer is "covalent bonds".

Explanation:

A covalent coordinated or dative bond is formed when two atoms are linked together, sharing a pair of electrons. But only one of these atoms is the one that brings the pair of shared electrons. For this type of bond to occur, it is required that the donor atom has a pair of free electrons in an outer orbital and the acceptor atom has the capacity to receive that pair of electrons in its last valence layer.

On the other hand, a Lewis base is a substance that can share or donate a pair of electrons, because they have a pair of solitary electrons. A Lewis acid is that substance that accepts or takes a pair of electrons because they have their last electron layer incomplete.

It is then possible to say that an Lewis acid-base reaction is formed by the Lewis acid and base joined by a coordinated covalent bond.

So, the correct answer is "covalent bonds".

Leokris [45]3 years ago

5 0

The correct option is COVALENT BONDS.

A Lewis acid is defined as a substance which accept a pair of electron while a Lewis base refers to a substance that donate an unshared pair of electrons to another chemical specie with which it shared the donated pair of electrons.

Lewis acid and Lewis base react together to form salt and water. This type of reaction is called neutralization reaction. The neutralization reaction of Lewis acid and Lewis base involves electron pairs transfer, thus, there is an increase in the number of covalent bonds during this reaction.

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Answer: Explanation:

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3 years ago

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2 years ago

Silver has two naturally isotopes and has an atomic mass of 107.868 amu. One isotope is Ag-109 isotope (108.905 amu) and has a n

Triss [41]

Answer: 106.905

Explanation: If there are only 2 isotopes, and 1 of them is 48.16%, the second must, by default, be (100 - 48.16%) = 51.84% The final, averaged, atomic mass is 107.868. This is made up of each isotope's atomic mass times the percentage of that isotope in the total sample. The weighted value of the known isotope (109) plus that of the unknown must come to the observed value of 107.868 amu. (107.868 - 52.45 = 55.42). Divide that by the % for that isotope (55.42/0.5184) = 106.90 amu for the second isotope.

Atomic Mass % of Sample Weighted Value

108.905 48.16% 52.45

X 51.84% 55.42

107.87

X = (55.42/0.5184) = 106.90 amu

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2 years ago

In a particular redox reaction, no2– is oxidized to no3– and ag is reduced to ag. complete and balance the equation for this rea

ziro4ka [17]

Reduction Reaction:

Ag⁺ + 1e⁻ → Ag ------ (1)

Oxidation Reaction:

NO₂⁻  → NO₃⁻ + 2e⁻

Balance Oxygen atoms, by adding H₂O to side having less number of O atoms, and H⁺ to side having greater number of O atoms.

NO₂⁻ + H₂O  → NO₃⁻ + H⁺ + 2e⁻

Balance the H⁺'s,

NO₂⁻ + H₂O  → NO₃⁻ + 2 H⁺ +  2e⁻ ------ (2)

Multiply eq. 1 by 2 to balance the number of electrons in overall reaction.

2 Ag⁺ + 2e⁻ → 2 Ag ----- (3)

Compare eq. 2 and 3,

NO₂⁻ + H₂O  → NO₃⁻ + 2 H⁺ +  2e⁻
2 Ag⁺ + 2e⁻ → 2 Ag
_______________________________________

NO₂⁻ + H₂O + 2 Ag⁺  → NO₃⁻ +  2 Ag + 2 H⁺

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3 years ago