Автор - Lidiya200

C2H2+HBr=
HCOOH+CH3OH=
HCOOH+Na=

Ответ

Автор - Alhimica
C2H2+HBr=C2H3Br
HCOOH+CH3OH=HCOOCH3+H2O
2HCOOH+2Na=2HCOONa+H2

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