7.42 Give the structure corresponding to each name. a. 3-bromo-4-ethylheptane b. 1,1-dichloro-2-methylcyclohexane c. 1-bromo-4-ethyl-3-fluorooctane d. (S)-3-iodo-2-methylnonane e. (1R,2R)-trans-1-bromo-2-chlorocyclohexane f. (R)-4,4,5-trichloro-3,3-dimethyldecane