第31页

信息发布者:
$\mathrm {Zn+2HCl}\xlongequal[]{}\mathrm {ZnCl}_2+\mathrm {H}_2↑$
$\mathrm {Fe+CuCl}_2\xlongequal[]{}\mathrm {FeCl}_2+\mathrm {Cu}$
$\mathrm {CuO+H}_2\mathrm {SO}_4\xlongequal[]{}\mathrm {CuSO}_4+\mathrm {H}_2\mathrm {O}$
$\mathrm {CO}_2+\mathrm {Ca(OH)}_2\xlongequal[]{}\mathrm {CaCO}_3↓+\mathrm {H}_2\mathrm {O}$
$\mathrm {NaOH+HCl}\xlongequal[]{}\mathrm {NaCl+H}_2\mathrm {O}$
$\mathrm {BaCl}_2+\mathrm {H}_2\mathrm {SO}_4\xlongequal[]{}\mathrm {BaSO}_4↓+2\mathrm {HCl}$
$\mathrm {CuSO}_4+2\mathrm {NaOH}\xlongequal[]{}\mathrm {Na}_2\mathrm {SO}_4+\mathrm {Cu(OH)}_2↓$
$\mathrm {NaCl+AgNO}_3\xlongequal[]{}\mathrm {AgCl}↓+\mathrm {NaNO}_3$
(1)(2)
(3)(5)(6)(7)(8)
$\mathrm {C}_{}$
D
B
金属氧化物
$\mathrm {NaOH+HCl}\xlongequal[]{}\mathrm {NaCl+H}_2\mathrm {O}$