Cine se pricepe?Ajutor, am nevoie!Cine bun la chimie?

CH2=CH-CH2-CH3 + H2O --H+--> CH3-CH-CH2-CH3 (a)
1-butena OH
2-butanol (sec-butanol)
CH3-CH=CH-CH3 + H2O --H+--> CH3-CH-CH2-CH3
2-butena (b) OH
2-butanol (sec-butanol)