Write Lewis structures with the appropriate formal charges for these compounds and ions C₂H₅⁺, C₂H₅⁻, LiBH₄, and KBH₃CN.

From the given incomplete structure, illustrate the completed Lewis dot structure by placing bonds between atoms and placing the necessary lone pairs. Keep in mind that each atom must have a full octet.

For the following compound:
(i) Draw the appropriate Lewis structure.
(ii) Identify the type of orbital used by every carbon to make chemical bonds and estimate the bond angles.

CH₃CN

Draw three appropriate Lewis structures for the species given below.
C₄H₈O

Provide the Lewis structure of the given: NH₄O⁺

Give the Lewis structures and molecular formulas for the following line-angle structures:

(i)

(ii)

Give the molecular formulas and draw the Lewis structures of the following line–angle structures: