Ответ:
67,2мл
Объяснение:
C2H4--->C2H2+H2
Коэфиценты при C2H4 И H2 равны, поэтому
V(C2H4)=V(H2)<em>=67,2 мл</em>
<span>только три могу, но это лучше чем ничего
С3Н7СCl3 + H-OH
</span><span>C3H7CН=O + Cu(OH)2 --t--> C3H7COOH + Cu2O + H2O
</span><span>C3H7CN+ H-OH</span>
<span>NaOH + HNO3 = NaNO3 + H2O</span>
<span><span>Cu(OH)2 + 2HCl = CuCl2 + 2H2O</span></span>
<span><span><span>Cu(OH)2 = CuO + H2O</span></span></span>
<span><span><span><span>2Fe(OH)3 = Fe2O3 + 3H2O</span></span></span></span>
<span><span><span><span>________________________</span></span></span></span>
<span><span><span><span><span>б)Ca(OH)2</span></span></span></span></span>
<span><span><span><span><span><span>Д)NaOH</span></span></span></span></span></span>
<span><span><span><span><span><span><span>е)Cu(OH)2</span></span></span></span></span></span></span>