Desribing molecular forces of C5H6O
CH2=CH-CH=CH-CH=O
THREE double bonds.
We are asked to describe the bond and angle terms of this structure.
what it is - it looks like a ring structure and I have been unable to find it using familiar web searches.
assuming that the bond terms are C-C, C-H, C=O and C=C
figure out the angle terms (described in the text as a spring like force to preserve bond angles).