Al4C3+12H2O->4Al(OH)3 +3CH4
2CH4 ->C2H2 + 3H2
3C2H2->C6H6
C6H6 + Cl2->C6H5Cl+HCl
C6H5Cl+KOH ->C6H5OH + KCl
1) CH2 = CH - CH3 + H2 CH3 - CH2 - CH3
2)CH2 = CH - CH3+Cl2 ClCH2 - CH (Cl) - CH3
3)CH2 = CH - CH3+HСl CH3—CH(Cl)—CH3
4)CH2 = CH - CH3 + H2O CH3 - CH(OH) - CH3
О2/N2=32/28=1.14
O2/29=32/29=1.13
2K +2 H2O -> 2KOH + H2
KOH + HCl -> KCl + H2O
2KCl ->2 K + Cl2 электролиз
Дано:
<span>n(H2SO4) = 2 моль
</span><span>Найти: m(H2SO4)</span>
Решение:
<span>M (H2SO4) = 1∙2 + 32 + 16∙4 = 98 г\моль</span><span>
m (H2SO4) = n ∙M
= 98 г ∙ 2 моль = 196
г</span>
<span>Ответ: m(H2SO4) =
196 г</span>