<em>Приветствую</em>
₁ ₂ ₃ ₄
CH₄ → C₂H₂ → C₆H₆ → C₆H₅NO₂ → C₆H₅NH₂
1. 2CH₄ = С₂H₂ + 3H₂↑
2. 3C₂H₂ = C₆H₆
3. C₆H₆ + HNO₃ = C₆H₅NO₂ + H₂O<span>
4. </span><span>C</span>₆<span>H</span>₅<span>NO</span>₂<span> + 3H</span>₂ <span>= C</span>₆<span>H</span>₅<span>NH</span>₂<span> + 2H</span>₂<span>O</span>
M(FeS)=352 г
M(FeS)=88 г/моль
количество вещества сульфида железа
n(FeS)=m(FeS)/M(FeS)
n(FeS)=352/88=4 моль
<span>A)Mg+H2SO4=MgSO4+H2</span>
<span>Б) </span><span>MgO+H2SO4 = MgSO4+H2O
В) 3H2SO4+ AL2O3 = AL2(SO4)3 + 3H2O
Г)K2O+H2SO4 = K2SO4 + H2O
Е)H2SO4+Zn=ZnSO4+H2</span>