1. In IR spectroscopy, the C=O bond has a stretching frequency than the C=S bond because A) higher, an O atom has less mass than an S atom B) lower, an O atom has more mass than an S atom c) higher, an O atom has less electronegativity than an S atom D) lower, an O atom has more electronegativity than an S atom E) higher, an O atom has an even number of neutrons

Please help me answer the two of these :(

KCl Express your answer as an ion.

b. Predict the relative stabitlities of the ions D and E shown below. Which is most stable? D CH E CH

The bond dissociation energy to break 9 C-H bond(s) in 1 mole of hexane (CH₃CH₂CH₂CH₂CH₂CH₃) molecules is

LO-2 9. Neon (1°Ne) is a noble gas that gives a characteristic reddish glow when a voltage is applied to a tube lamp. Although the Nez is not known, the existence of Nez* is detected. a) Explain why Ne2 is unstable, but Ne2* is stable? b) Describe the magnetic properties of Nez*, is it paramagnetic or diamagnetic? Explain! c) Which Ne-Ne bond is longer (theoretically), in Ne2 or Ne2*? Explain!

%3D Drawing curved arrows on a skeletal structure to show how. Draw the simplest set of curved arrows that shows how the structure on the left could be turned into the structure on the right. Show all lone pairs. If you need to expand part of the structure to show some lone pairs, expand it by drawing in all atoms and bond lines. NH2 NH, 74 F search DELL F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 %24 %23