Am nevoie de ajutor urgent!!!!

a) CH3-CHBr-CH2-CH3
b) H2
c) CH2Cl-CHCl-CH3
d) HO-CH2-CH2-OH
e) CH3-CH(OH)-CH3
f) CH3-COOH + HOOC-CH2-CH3
g) CH3-CH=CH2