K2CO3 + H2SO4 = K2SO4 + CO2 + H2O
SiO2<span> + 2K</span>2CO3<span> = K</span>4SiO4<span> + 2CO</span><span>2</span>
<span>СH2= C(вниз CH3)- CH2-CH2-CH=CH2</span>
CH2=CH2+Br=CH2Br-CH2Br
CH3-C≡C-CH3+2Br2=CH3-CBr2-CBr2-CH3
<span>CH2=CH2+3O2=2CO2+2H2O
</span><span>CH3-C≡C-CH3+(5.5)O2=4CO2+3H2O
</span>х-объем <span>CH3-C≡C-CH3, y - СH2=CH2
х/22.4*2+y/22.4=288/160
x/22.4*3+y/22.4*2=54/18
x=13.44 л.
y=13.44 л.
w(</span><span>CH3-C≡C-CH3)=50%
w(CH2=CH2)=50%</span>
C6H6 + 3H2 => C6H12 (циклогексан)
C6H6 + Cl2 => C6H5Cl + HCl
C2H2 + HCl => CH2=CHCl
CH2=CHCl + HCl => CH3-CHCl2
<span>ацетилен-->винилацетилен
</span>
2C2H2 => CH2<span>=CH-C≡CH</span>
Ca+O=CaO
M(CaO)=40+16=56 г/моль;
n(CaO)=224/56=4моль;
n(Ca)=x;
X/1=4/1; откуда x=4 моль;
M(Ca)=40 Г/моль;
m(Ca)=4*40=160 г