1)CaC2+2HOH=Ca(OH)2+C2H2
2)2C2H2+5O2=4CO2+2H2O
CO2+C=2CO
CO+2H2=CH3OH
3)CH3OH+HCl=CH3Cl+H2O
2CH3Cl+2Na=2NaCl+C2H6
CH3-CH3+Cl2=CH3-CH2Cl+HCl
CH3-CH2Cl+KOH=CH3-CH2OH +KCl
3)C25OH=C2H4+H2O
4)C2H4+H2=C2H6
5)C2H6+Cl2=C2H5Cl+HCl
C2H5Cl+NaOH=C2H5OH+NaCl
C2H5OH+HCl=C2H5Cl+H2O
2C2H5Cl+2Na=2NaCl+C4H10
C4H10=C4H6+2H2
C4H6+2HBr=C4H8Br2