С. 1. hcooh+ch₃oh 2. hcooh+c₃h₇oh 3. hcooh+c₄h₉oh 4. hcooh+baco₃ 5. hcooh+sr₂o 6. hcooh+li 7. hcooh+cu(oh)₂

1. HCOOH+CH₃OH=НСООСН3+Н2О
2. HCOOH+C₃H₇OH=НСООС3Н7+Н2О
3. HCOOH+C₄H₉OH=НСООС4Н9+Н2О
4. 2HCOOH+BaCO₃=(НСОО)2Ва+Н2О+СО2
5.2HCOOH+Sr2O=2НСООSr+Н2О
6. 2HCOOH+2Li=2НСООLi+Н2
7. 2HCOOH+Cu(OH)₂=(НСОО)2Сu+2Н2О