(Solved): 9. The molecule uracil is an important part of the structure of RNA. Complete the drawing with the ...

9. The molecule uracil is an important part of the structure of RNA. Complete the drawing with the proper double bonds and lone pairs (Hints: The drawing is missing 3 double bonds and 6 lone pairs; remember that every atom, except hydrogen, wants an octet. Every atom should end up with zero formal charge) 10. For each of the structures of \( \mathrm{CS}_{2} \) below, assign formal charges to each atom. Which structure is the best with respect to formal charges? Formal charge \( -\rightarrow-\infty-\infty- \) chemistry. Two resonance structures of a molecule are shown below. Write the formal charge of the carbon and oxygen atoms marked with asterisks \( \left(^{*}\right) \) in each resonance structure.