Question

H-c-oh+na

H-c-oh+cao

H-c-h+ch3-ch2-ch2-ch.

Радикалы.

Answer 1

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

Answer 2

HCO-CH-CH2-CH2-CH3