СH4 + Cl2 = CH3Cl + HCl
2CH3Cl +2 Na = C2H6 + 2NaCl
C2H6 + Cl2 = C2H5Cl + HCl
2C2H5Cl + 2Na = C4H10 + 2 NaCl
na+h2o=naoh+h2(ВОТ РЕШЕНИЕ)
n = 0.72 (моль)
M(SO3) = 32+3*16 = 80 (г/моль)
N=Na*n, где Na - число Авогадро = 6.02*10^23 (молекул/моль)
N=6.02*10^23*0.72 = 4.3344*10^23 (молекул)
1) 2KHCO3<span> + H</span>2SO4<span> → K</span>2SO4<span> + 2H</span>2O + 2CO2↑
2K+<span> + 2HCO</span>3-<span> + 2H</span>+<span> + SO</span>42-<span> → 2K</span>+<span> + SO</span>42-<span> + 2H</span>2O + 2CO2↑
HCO3-<span> + H</span>+<span> → H</span>2O + CO2↑
2) Zn(OH)2<span> + 2NaOH → Na</span>2[Zn(OH)4]
Zn(OH)2<span> + 2Na</span>+<span> + 2OH</span>-<span> → 2Na</span>+<span> + [Zn(OH)</span>4]2-
Zn(OH)2<span> + 2OH</span>-<span> → [Zn(OH)</span>4]2-
3) CaCl2<span> + 2AgNO</span>3<span> → Ca(NO</span>3)2<span> + 2AgCl↓</span>
Ca2+<span> + 2Cl</span>-<span> + 2Ag</span>+<span> + 2NO</span>3-<span> → Ca</span>2+<span> + 2NO</span>3-<span> + 2AgCl↓</span>
Ag+<span> + Cl</span>-<span> → AgCl↓</span>