2CH4=C2H2+3H2
3C2H2=C6H6
C6H6+Cl2=C6H5Cl+HCl
C6H5Cl+NaOH=C6H5OH+NaCl
C6H5OH+3Br2=C6H2Br3OH+3HBr
б)
CH4+Cl2=CH3Cl+HCl
2CH3Cl+2Na=C2H6+2NaCl
C2H6+Cl2=C2H5Cl+HCl
C2H5Cl+CH3Cl+2Na=C3H8+2NaCl
C3H8+Cl2=C3H7Cl+HCl
2C3H7Cl+2Na=C6H14+2NaCl
C6H14=C6H6+4H2
C6H6+Cl2=C6H5Cl+HCl
C6H5Cl+NaOH=C6H5OH+NaCl
C6H5OH+3HNO3=C6H2(NO2)3OH+3H2O
CH2NH2COOH+NaOH=CH2NH2COONa+H2O
M(CH2NH2COONa) = 12+2+14+2+12+32+23=97г/моль
1-в; 2-а;3-г;4-г;5-в;6-в;7-б;8-г;9-а;10-б
11) Fe+H2SO4=FeSO4+H2
FeO+H2SO4=FeSO4+H2O
Fe(OH)2+H2SO4=FeSO4+2H2O
12) x-Fe2O3; y-FeCl3; z-Fe(OH)3
13) 4Al+3O2=2Al2O3
2Al+6H2O=2Al(OH)3+3H2
15) 2CuO=2Cu+O2
n(CuO)=2моль, Mr=79г/моль, m=2*79=158г
n(Cu)=2 моль, Mr=63г/моль, m=2*63=126г
160 г - х г
2Mg+O2->2MgO
Fe2O3+3Mg->3MgO+2Fe
Только с валентность хрома в 3 в не понял