# chem

draw the lewis structure for NO2- including any valid resonance structures. which of the following statements are true?

a. the nitrite ion contains 2 N-O bonds that are equivalent to 1 1/2 bonds.
b. the nitrite ion contains 2 N=O double bonds
c. the nitrite ion contains 1 N-O single bond and one N=O double bond
d. the nitrite ion contains 2 N-O single bonds

the answer is A, but I don't understand why its not C

1. 👍
2. 👎
3. 👁
4. ℹ️
5. 🚩
1. We can't draw diagrams or structures on the boards because of spacing problems. But thanks for the answer because it tells me what your problem is.
You have drawn the structure and it contains 1 N-O bond and 1 N=O bond as well as a pair of unshared electrons on the N atom. Right? So you see 1 single N-O bond and 1 N=O double bond. Right? But that isn't what happens. There is a resonance structure that can be drawn. The electrons can be rearranged so that what was the N-O bond becomes the N=O bond and what was the N=O bond becomes the N-O bond. So there are two structures, each containing 1 N-O bond and 1 N=O bond BUT the single and double bonds are to different O atoms. So which one is the correct structure. Neither is. We say we can draw two equivalent resonance structures and the N-O bond is an average between a single and a double bond. If the N-O bond length is measured in the lab, we do NOT get two N-O bond lengths (which we would do IF there were two kinds of bonds); we get just one bond length and it is between a single and a double bond in strength. Avoid the idea that the electrons are flipping back and forth between a single and double bond for they don't do that. What we are seeing is a resonance hybrid. So why don't we just draw it the way it really is. Because we just don't know enough about the structure to do that. We can draw the two forms and say it is something in between and that's the best we can do.

1. 👍
2. 👎
3. ℹ️
4. 🚩

## Similar Questions

1. ### Chemistry

Draw the Lewis structures for BrO3- and ClO4- and indicate their correct number of additional resonance structures. I'm a little confused about this. For example, I've got the correct original form of BrO3- down. Where all 3 O

2. ### Chemistry

How do you draw the lewis structure for Cyanogen (C2N2) ?

3. ### Chemistry

Select the true statements regarding the resonance structures of formate. HCO2 Check all that apply: Each oxygen atom has a double bond 50% of the time. The actual structure of formate is an average of the two resonance forms.

4. ### ap chem

consider the molecules PF3 and PF5. b]is the PF3 molecule polar or is it nonpolar. explain C] on the basis of bonding principles, predict whether each of the following compounds exists. In each case explain your prediction. (i)

1. ### chemsitry

What is the formal charge on each of the atoms in the Lewis structure of the PO4 (-3) charge? Draw another possible Lewis structure of the phosphate ion below. Formal charge on P is ? -how do I do this problem.

2. ### Chemistry

Hi! So, I thought I was very comfortable with distinguishing among Arrhenius, Bronsted-Lowry, and Lewis acids and bases. But then, I answered this question wrong and am looking for help because I'm not sure if my "second choice"

3. ### chemistry

Given that S is the central atom, draw a Lewis structure of OSF4 in which the formal charges of all atoms are zero

4. ### Chemistry..

For the lewis structure of BCl3, does it have a total of 24 valence electrons? Also does it have a total of 4 bonds? If possible can you draw the lewis structure?

1. ### Chemistry

Which statement about resonance structures is TRUE: 1) There can never be more than two resonance structures for any molecule. 2) Only ionic compounds use resonance structures 3) The real structure of a molecule is an average or

2. ### Chemistry

Draw the best Lewis structures for NO+, NO2-, NO2H, and NO3-. Based on the Lewis structures, list all of the the N-O bonds lengths in order of shortest (1) to longest (5). N-O bond length in >>> 2 N-O double bond in NO2H >>> 1 N-O

3. ### Chem

1) Draw the Lewis structure for CH3NCO, a neutral molecule. 2) Draw the best Lewis structure for NCCH2COCH2CHO, a neutral molecule.

4. ### chemistry lewis structure

please help me i don't know how to do this! Draw the lewis structure for: SiO3 -2