KNO2<span> + </span>Br2 + H2O → 2HBr + KNO3
Решение:
Дано:
m(H2O) = 540 г n(H2O) = m(H2O) / Mr(H2O) = 540 / 18 = 30 моль
Mr(H2O) =18 г/моль
Дано:
n(H2O) =?
<span>Fe+<span>2<span>HCl</span></span> → <span>FeCl2</span>+H2
</span><span><span>Cu</span>+<span>2<span>HCl</span></span> → <span>CuCl2</span>+<span>H2
</span></span>
Ca(OH)2 + Cu(NO3)2 = Ca(NO3)2 + Cu(OH)2