Expand each of the following condensed formulas into their complete structural formulas.
(a) `CH_(3)CH_(2)COCH_(2)CH_(3)`
(b) `CH_(3)CH=CH(CH_(2))_(3)CH_(3)`

Explanation

(a) `H-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-overset(O)overset(||)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-H`
(b) `H-underset(H)underset(|)overset(H)overset(|)(C)-overset(H)overset(|)(C)=underset(H)underset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-H`