A)ch3-choh-ch2-cooh+naoh= b)ch3-choh-cooh+ch3oh= c)ch3-choh-cooh+hcl=

1) CH3-CH(OH)-CH2-COOH + NaOH --> CH3-CH(OH)-CH2-COONa + H2O
2) CH3-CH(OH)-CH2-COOH + CH3OH -(Обратима, кислая среда)->
CH3-CH(OH)-CH2-COOCH3 + H2O 
3) CH3-CH(OH)-CH2-COOH + HCl --> CH3-CH(Cl)-CH2-COOH + H2O