1) 2NaOH+H2SO4=Na2SO4+2H2O
2) NaCl+AgNO3=NaNO3+AgCl
3) BaCl2+CaSO4=BaSO4+CaCl2
4) BaO+H2O=Ba(OH)2
5) 2HNO3+Ag2O=2AgNO3+H2O
Добрый день.
Например:
<span>стеариновая (C</span><span>₁</span><span>₅</span><span>H</span><span>₃</span><span>₅</span><span>COOH)</span>
<span>пальмитиновая (C</span><span>₁</span><span>₅</span><span>H</span><span>₃</span><span>₁</span><span>COOH)</span>
<span>масляная (<span>C</span></span><span>₃</span><span>H</span><span>₇</span><span>COOH)</span>
<span>олеиновая (C</span><span>₁</span><span>₇</span><span>H</span><span>₃</span><span>₃</span><span>COOH)</span>
<span>линолевая (C</span><span>₁</span><span>₇</span><span>H</span><span>₃</span><span>₁</span><span>COOH)</span>
FeCl2 + ZnSO4 — FeSO4 + ZnCl2
реакция не будет идти, поскольку не образуется осадок
<em>Zn</em><span> + </span><u>2</u><em>H</em><em>Cl</em><span> = </span><em>Zn</em><em>Cl</em>2<span> + </span><em>H</em>2↑
<u>2</u><em>H</em>+<span> + </span><u>2</u><em>e−</em><span> = </span><em>H</em>2 (восстановление)
<em>Zn</em><span> − </span><u>2</u><em>e−</em><span> = </span><em>Zn</em>2+ (окисление)
Zn(о) + 2H(+) + 2Cl(-) = Zn(2+) + 2Cl- + H2
<span>Zn(о) + 2H(+) = Zn(2+) +H2</span>