N2 + O2 = 2NO
2Fe + Cl2 = 2FeCl
Cl2 + O2 = 2ClO
2Al + H2 = 2AlH
CH4 + 2O2 -> CO2 + 2H2O +890 кДж
n(CH4) = 89,6/22,4 = 4 моль
<span>Q = 1,5*890 = 3560 кДж</span>
<span>C3H4
</span><span>C8H14
</span><span>C4H6
.........................</span>
M(H3PO4)=n(H3PO4)*M(H3PO4)=3*(3+31+16*4)=294 г.
Сh тр. св. ch ацетилен ch3-ch3-c тр.св. ch бутин