a. What charge of O2 would produce an ion with a bond order of 2.5? b. Of F2, B2, O2, and N2 how many are paramagnetic? c. Of F2, B2, O2, and N2 how many increase in bond length when an electron is removed? d. Arrange these from strongest to weakest bond: B2, C2, N2 π* Π b 9 σ strongest O, F, Ne བུ π* π b σ* σ weakest B, C, N

Select the sentence that correctly describes the relationship between this pair of molecules. a They are both enantiomers and isomers. b They are enantiomers but not isomers. c They are isomers but not enantiomers. d They are neither enantiomers nor isomers.

Curved arrows are used to illustrate the flow of electrons. Using the provided starting structure, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Then draw any missing organic intermediates or products for this epoxidation reaction. Include all lone pairs in the structures. Ignore inorganic byproducts, counterions, and solvents. 0. ~ H :OH: H Q H --0 Q mCPBA dilute HCI Select to Draw Intermediate 0:0 NaOH :OH: H Select to Add Arrows H I I I I I I I I I I

1. Polar Covalent Bonds a. Draw one water molecule. b. Indicate which bonds are polar covalent bonds by using a solid red line for each of those bonds. c. Label the partial charges.