each of the following species except____, the electronic structure may be adequately described by 2 resonance formulas.

Question

each of the following species except____, the electronic structure may be adequately described by 2 resonance formulas.

NO2
C6H6
SO2
O3
SO3 -2charge

Answer 1

To do this right you need to learn how to draw the Lewis electron dot structures for the substances listed. We can't draw them on these boards. I would go with SO3^-2 as the one without another resonance structure.

Answer 2

To determine which species cannot be adequately described by two resonance formulas for their electronic structure, we need to examine their Lewis structures.

1. NO2 (nitrogen dioxide)
The Lewis structure for NO2 can be written with a double bond between nitrogen and one of the oxygen atoms, and a single bond between nitrogen and the other oxygen atom. This arrangement can be interchanged, giving us two resonance forms.

O O
║ ║
N = O or O = N

2. C6H6 (benzene)
The Lewis structure for benzene is a hexagon with alternating single and double bonds between carbon atoms. However, this does not represent resonance because it is the only possible arrangement.

║ ║ ║
H – C = C – C = C – C = C – C = H
║ ║ ║

3. SO2 (sulfur dioxide)
The Lewis structure for SO2 consists of a single bond between sulfur and one oxygen atom, and a double bond between sulfur and the other oxygen atom. The double bond can be interchanged, resulting in two resonance forms.

O O
║ ║
S = O or O = S

4. O3 (ozone)
The Lewis structure for O3 has a double bond between one oxygen atom and the central oxygen atom, and a single bond on each side. This can be interchanged, leading to two resonance forms.

O O
║ ║
O = O O – O

5. SO3 2- (sulfite ion)
The Lewis structure for SO3 2- involves three equivalent resonance structures with a double bond between sulfur and one oxygen atom, and single bonds between sulfur and the other two oxygen atoms.

O O O
║ ║ ║
O = S or S = O or O = S

From the above analysis, the species that cannot be described by two resonance formulas is C6H6 (benzene). The benzene molecule has a unique electronic structure that cannot be represented by interchanging bonds within the molecule.

each of the following species except____, the electronic structure may be adequately described by 2 resonance formulas.

To do this right you need to learn how to draw the Lewis electron dot structures for the substances listed. We can't draw them on these boards. I would go with SO3^-2 as the one without another resonance structure.

C6h6

To determine which species cannot be adequately described by two resonance formulas for their electronic structure, we need to examine their Lewis structures.