Добрый день.
1. 2HCOOH<span> + </span>Ca(OH)₂ = (HCOO)₂Ca + 2H₂<span>O
2. </span>HCOOH + C₂H₅OH = HCOOC₂H₅ + H₂O
3. <span>HCOOC</span>₂<span>H</span>₅<span> + NaOH = HCOONa + C</span>₂<span>H</span>₅<span>OH</span>
а) C3H4 + H2=C3H6 (пропен-1)
б) C3H4+ HCl=C3H5Cl (хлорпропен-1)
в) C3H4 +Н2О=С3Н5ОН( пропенол-2)