1. Which of the following molecules should have the longest max based on the idea it has the most continuous conjugation?

Which molecule would be more polar, CH3F or CH3Cl? And why?

You will need to draw the chair forms (and possibly the flipped chair forms) of the molecules in each row. (HINT: "most stable" is most big groups equatorial.) Most stable in row 1 is Most stable in row 2 Most stable in row 3

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. compound H-C=N-H I H H H | | H-C-N-H I H H-CEN: length of highlighted bond choose one - choose one - choose one energy of highlighted bond choose one - choose one - V - choose one X 3

Match each of the general molecular formulas below with its correct molecular geometry. Note: The sorting box Tri. Bipyramidal stands for trigonal bipyramidal. Items (6 items) (Drag and drop into the appropriate area below) AB5 with no lone pairs on A AB4 with one lone pair on A AB4 with two lone pairs on A AB2 with one lone pair on A AB2 with two AB2 with no lone lone pairs on A pairs on A Categories Bent 120° bond Bent 109.5° bond Tri. bipyramidal Square planar Seesaw

Make a continuous model for C4H10 by using 4 black 4 hole carbon atoms, 10 white one hole hydrogen atoms, and 13 pink bonds. Then write in wedge dash notation C4H10 and add in missing hydrogen atoms.

3. Which of the following molecules are conjugated? For those which are conjugated, write a resonance structure.

Use the following scheme to answer the next three problems. OH HgCl₂ H₂O C 1. BuLi 2. compound D. 3. H HS BF3 SH E

1. For the molecules below circle the groups of atoms that are conjugated (sp² atoms): H A) B)

I need help woth these questions please