15. (WCSU26, 8 points) Draw the complete Lewis structures (including lone pairs and formal charges) for the following molecules/ions: a.  ClO2- b.  CH4O   Periodic Table   In the box below, enter the total number of lone pairs in the two structures (a+b).

(WCSU26) Rank the molecules (a, b, and c) in order of increasing carbon-oxygen bond strength.    weakest   [blank1]

(WCSU26) We often use theory (valence bond, hybridization, resonance, etc.) to explain experimental data. When resonance (delocalized pi bonding) is present in a structure, what you see is not always what you get.  In the structure shown, the bond angles about nitrogen are 120 degrees.     Based on this information, give the following information: a. Molecular geometry about the nitrogen atom: [blank1] b. Hybridization of the nitrogen atom: [blank2] c. Name type of orbital holds the lone pair: [blank3]

The salt concentration in ocean water is 0.217 moles/L.  What volume of ocean water, in liters, would contain 2.0 moles of salt?  Enter your answer with the appropriate number of significant figures

(WCSU26) Below is the structure of glutathione, a powerful antioxidant produced in the liver that plays a role in removing free radicals that can cause cell damage.  Identify the formal charges on the atoms A-D.  All the lone pairs are drawn in for you.  Labeled Atom Formal Charge A [blank1] B [blank2] C [blank3] D [blank4] , Periodic Table

Convert the equation to the standard CONIC form for a parabola. ie:  (         )2=4a(     ) Must show work on own paper.  Type answer in box.           x2 + 6x + 8y – 15 = 0

Find the least squares regression line to predict the time on the internet given the time watching TV. Internet Time VS Watching TV Subject A B C D E F G Time watching TV (x) 7 3 1 6 6 4 5 Time on Internet (y) 14 12 8 17 18 9 18  

Define manuport.

In at least 100 words:  Discuss the evolution of the kouros figure from the Archaic period into the Classical era.  What shifts in form and meaning does this reveal about Greek conceptions of the human body? Give specific examples of works of art

This figure shows a lateral view of the skull. What bone is visible within the suture indicated by number 3?