C One triple bond and one unshared pair of electrons O O H H-N-H H H-O-N=0 H ΟΗ O : N-N: H H NEN:

In which structure(s) below does the oxygen have a formal charge of -1? H-0-H H-ö: H-C=ö-H H3C-0-CH3 ČH3 I II III IV I only O Il only I and II I and IV O , II, and IV :0-I

Which of the structures shown below has two sigma (o) bonds? H-C-H H-Ñ=ö: :Ci-C-Ċi: :CEO: H-N=Ö: O Cl20 O HNO O CO O CH4 HICIH

Which has the shortest bond length in a series of C-H, C-C and C-O and C-N? O CH O CC O C-O O CN

Choose the correct resonance hybrid for the following compound. 0 O O 49 -O-H ●ㅗㅗ 8+ 8+ HO-H co ---- 8+ 8+ H ○- + DHE O-H 8+ 8-H

1) Classify each bond below as ionic, non-polar covalent, or polar covalent. For the polar covalent compounds, indicate the direction of the dipole. Na-Br H-CI H3C-CH,CH, H,CO-H Br-Br H-OH H,C-CF, H-CH, F-CI H,C-OH Br-Mg -Br Li-CH,CH3 2) Determine the formal charge on each of the bold atoms below. Lone pairs have been drawn in for you. Hc- ー4 H,C-cEc: Hy .C H,C CH, Hc-C OH2 H. 3) Determine the formal charge on each of the bold atoms below. You must draw in lone pairs as appropriate. H C=CH HC CH N. H. HC PH H,C CH H,C H CH, H.

ANSWER THE FOLLOWING PROBLEMS AND EXPLAIN YOUR ANSWER FOR BETTER UNDERSTANDING. 1. Assign formal charges to each carbon, nitrogen and oxygen atom in the given species. H-C-H CH3-N=N: :OH || CH3-C-CH3

Which has the shortest bond length in a series of C-H, C-C and C-O and C-N? O CH OCC O C-O C-N

5.3 Homework Page 312- Questions 1-4 Pg 312(#1-4) Use the data from Table 1 to calculate the energy to separate 1 mol of chloromethane, CH3CI (g) , into free atoms. Ex A Edit Math

Calculate the formal charge for each atom that is not carbon or hydrogen in the following molecules.