MOLECULE
 

LEWIS STRUCTURE

Jmol Model
w/o lone pairs

H2O - water

 

NH3 - ammonia

 

H2CO - formaldehyde

 

N2 - (di)nitrogen

 

CO2 - carbon dioxide

 

CH3CO2H  - acetic acid

 

H3PO4  - phosphoric acid

(Chime file doesn't display
double bond btw P and O)

 

PO4 3- - phosphate

(Chime file doesn't display
double bond btw P and O)

No resonance shown

 

 

H2CO3  -  carbonic acid

 

CO3 2- - carbonate

no resonance shown