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信息发布者:
Zn+2HCl=ZnCl₂+H₂↑
Fe+CuCl₂=Cu+FeCl₂
CuO+H₂SO₄=CuSO₄+H₂O
CO₂+Ca(OH)₂=CaCO₃↓+H₂O
HCl+NaOH=NaCl+H₂O
H₂SO₄+BaCl₂=2HCl+BaSO₄↓
2NaOH+CuSO₄=Cu(OH)₂↓+Na₂SO₄
NaCl+AgNO₃=AgCl↓+NaNO₃
(1)(2)
(3)(5)(6)(7)(8)
C
D
A
A
D