Quiz2_dueSept21

Consider the resonance structures for the carbonate ion.

please answer quickly

Consider the structures below labeled A-E, including any resonance structures of equal or different charge distribution that are not specifically drawn below for the next two questions. :0: -N-8: A :N=Q: B :N=1=0: C |:Ộ—N=Ở: D 17. Which compound above has the strongest bond between N and O? 18. Which compound above has the longest bond between N and O? d=i—ở E

Oxygen atom is: Cation/Anion/Neither # of protons # of electrons Charge (1-, 2-, 3- 1+ 2+, 3+, or 0) Number of dots on the Lewis dot structure? Lose How many electrons does atom lose/gain to become more stable? electron(s)

Which of the following contributing resonance structures is more important in the two examples below? Еxample 1 :0: H3C- NH2 H3C- More important resonance structure = Example 2 H NH2 NH2 HC- HC H H H More important resonance structure =

Which of the following shows correct arrow placement that represents significant resonance for the given species? H-O= H-O: 5 None of the choices given represent significant resonance. H-O= Save for Later

Please don't provide handwriting solution

Is the following resonance arrow valid? Loz no O yes

Assign formal charges to the atoms in the following resonance forms of ClO2^-

Decide whether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column. structures resonance structures? yes no H H O yes no

Which of the highlighted chemical bonds in the molecules below is longest? Shortest? In between? Which highlighted bond requires the highest energy to break? Lowest? In between? Answer these questions by completing the second and third columns in the table.

None

How many resonance structures does the following molecule have? H-C Select one: O 1 O 2 O 3 O 4 O 5 //

None

Which of the highlighted chemical bonds in the molecules below is longest? Shortest? In between? Which highlighted bond requires the highest energy to break? Lowest? In between? Answer these questions by completing the second and third columns in the table. length of highlighted bond energy of highlighted bond compound :F: Н—с—н choose one - choose one | H :Br: Н—с—н choose one choose one - v H :ci: Н—с—н choose one - v choose one - ▼ H

The first resonance structure of nitromethane, CH, NO,, is shown. H. +1 Н-С—N H Determine the correct second resonance structure of nitromethane. H O H • •-1 +1 H-C=N • -1 C=N H ••-1 H H. •• -1 O: H-C-N H +1 Н- С—N. H :Ö: H :0: :0:

is this correct?

Calculating Formal Charge: Formal charge is calculated for each atom in a structure. It provides information about the stability and reactivity of the atom in the molecule. Formal Charge = Valence Electrons - 1/2 Bonding Electrons - Non-bonding Electrons For example, the formal charge on the carbon of methane is calculated here. Carbon has 4 valence electrons. There are 8 bonding electrons around it. Formal Charge4- 12 (8) -0 Calculate the formal charge on the circled atoms in the following structures. formal charge: Incorect formal charge: formal charge: 1 Incomect

Some of the figures represent invalid sets of resonance structures for this molecule.  Select all the VALID sets of resonance structures.

Ee.21.

When I calculated the bond energy, I got a negative value. So, I know I messed up somewhere. Thanks!

Please correct answer and don't use hand rating

: ☐ ↑ Shown below is the major resonance structure for a molecule. Draw the second best resonance structure of the molecule. Include all non-zero formal charges. H H HH C Ν O: H Click and drag to start drawing a structure. X 5

How much energy (in kJ) is required to separate (break) one mole of H-H bonds?

Decide whether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column. structures resonance structures? O yes O no yes O no O yes O no O yes O no

Label each pair of compounds as resonance structures or not resonance structures.