А) 2Zn+ O2-> 2ZnO
б) <span>3Fe + 4H2O->Fe3O4 + 4H<span>2
в) </span></span><span>2Hg + Cu(NO3)2-></span><span>Hg2(NO3)2 + Cu
г) </span>2Аl + 3I2 = 2AlI3
1) C4H10=C2H6+C2H4 ( крекинг алканов)
2) С2Н6= С2Н4+Н2
3)С2Н4+Н2О=С2Н5ОН
4) С2Н5ОН+СuO= C2H4O+Cu+H2O
CH3-COOH + NaOH->CH3-COONa + H2O
2CH3-COONa + 2H2O электролиз -> H2 + CH3-CH3 + 2CO2+ 2NaOH
С2H6 +Cl2->C2H5Cl + HCl
C2H5Cl+ KOH -> C2H5OH + KCl
C2H5OH t(H+)->C2H4 + H2O
C2H4+HBr->C2H5Br
2Cl2 + 4NaOH = 2NaOCl + 2NaCl + 2H2O