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完成下列化学方程式
①+________→________+NaCl
②+________→AgCl↓+________
③________++________
④+________→
+________
⑤________++________
⑥+________→
+________+________
完成下列化学方程式
①________+Zn=+Cu
②+________=2NaOH+________
③________+2HCl=+________+________
④+________=
+________
⑤________++________
⑥CuO+________=+________
⑦+________=
+________
⑧+________=
+________+________
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