<span>2C2H5Br + 2Na->C4H10 +2NaBR</span>
<span><span>C4H10 -> C4H8 + H2</span></span>
<span>C4H8->C4H6+H2</span>
<span>2C4H6+11O2->8CO2+6H2O</span>
<span> FeCl2 + HOH =></span>Fe(OH)Cl<span> + </span>HCl
2. <span>Кислотный остаток: Валентность:
Cl 1
</span><span>MnO₄ 1
CO</span>₃ 2
O₃ 2
PO₄ 3
NO₃ 1
S₃ 2
Ответ:
6NaOH + P2O5 = 2Na3PO4 + 3H2O
2NaOH + H2S = Na2S + 2H2O
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
Fe2O3 + 2NaOH = 2NaFeO2 + H2O
2Al + 6NaOH = 2NaAlO2 + 3H2 + 2Na2O
Cr + 3NaOH = Cr(OH)3 + 3Na
больше не бум бум
Объяснение: