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Describe the formation of outer orbit complex [Ni(H2O)6]2+ ion using VBT



Urea, a compound formed in the liver, is one of the ways humans excrete nitrogen.


The Lewis structure for urea is



Using hybrid orbitals for carbon, nitrogen, and oxygen, determine which orbitals overlap


to form the various bonds in urea.

One of the first drugs to be approved for use in treatment of acquired immune deficiency


syndrome (AIDS) was azidothymidine (AZT). Complete the Lewis structure for AZT.


Use the localized electron model to describe the bonding in hydrogen cyanide and


Phosgene (COCl2).

. Draw the resonance structures, and using formal charge arguments, predict the best Lewis structure for each ion. a. NCO- b. CNO

Describe the formation of outer orbit complex [Ni(H2O)6]2+ ion using VBT



Urea, a compound formed in the liver, is one of the ways humans excrete nitrogen.



The Lewis structure for urea is




Using hybrid orbitals for carbon, nitrogen, and oxygen, determine which orbitals overlap



to form the various bonds in urea.

The antibiotic thiarubin-A was discovered by studying the feeding habits of wild chimpanzees in Tanzania. The structure for thiarubin-A is a. Complete the Lewis structure showing all lone pairs of electrons. b. Indicate the hybrid orbitals used by the carbon and sulfur atoms in thiarubin-A. c. How many σ and π bonds are present in this molecule?

The antibiotic thiarubin-A was discovered by studying the feeding habits of wild chimpanzees in Tanzania. The structure for thiarubin-A is a. Complete the Lewis structure showing all lone pairs of electrons. b. Indicate the hybrid orbitals used by the carbon and sulfur atoms in thiarubin-A. c. How many σ and π bonds are present in this molecule?

A system does 536

536 kJ of work and loses 251

251 kJ of heat to the surroundings.

What is the change in internal energy, Δ𝐸

ΔE, of the system? Note that internal energy is symbolized as Δ𝑈 in some sources.