H-c-oh+na H-c-oh+cao H-c-h+ch3-ch2-ch2-ch. Радикалы.
1) HCOOH+Na=HCOONa+H2 2) 2HCOOH+CaO=(HCOO)2Ca+H2 3)HCOOH+C4H10=H-C-CH-CH2-CH2-CH3+H2 двойная связь с (С) O
HCO-CH-CH2-CH2-CH3