List of top Chemistry Questions on Kossel-Lewis Approach to Chemical Bonding

Which one follow 18 electron octet rule:
Write the resonance structures for SO3 , NO2 and NO3-
Write Lewis symbols for the following atoms and ions: \(S\) and \(S ^{2-}\) ; \(Al\) and \(Al ^{3+}\) ; \(H\) and \(H ^-\)
The skeletal structure of CH3COOH as shown below is correct, but some of the bonds are shown incorrectly. Write the correct Lewis structure for acetic acid.
The skeletal structure of CH3COOH
Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:
  1. K and S 
  2. Ca and O 
  3. Al and N.
Define octet rule. Write its significance and limitations.

Draw the Lewis structures for the following molecules and ions: \(H_2S\), \(SiCl_4\), \(BeF_2\), \(CO_3^{2-}\) , \(HCOOH\)

Explain the formation of a chemical bond.