1.
CaCO3+4C-->CaC2 + 3CO
CaC2+2H2O-->Ca(OH)2+CH≡CH
CH≡CH+ (O) -->CH3COH
2.
2CH4-->CH≡CH+3H2
CH≡CH+CL2-->CH2=CHCL+HCL
CH2=CHCL--> ( - CH2 - CH - )
|
CL
3.
CH3-CH3 + CL2--> CH3-CH2CL+HCL
CH3-CH2CL -->CH2=CH2+HCL
CH2=CH2+CL2-->CH2CL-CH2CL
2Al+6HCl = 2AlCl3 + 3H2
сумма коэфф: 2+6+2+3 = 13
Na.
Оксид - Na2O (23+23+16=62)
<span><span>СаСО3 + 2НС</span>l = СаСl2<span> + НОН + СО<span>2</span></span></span>