下列离子方程式书写正确的是 A. 氯化铁溶液溶解铜片：Fe3＋+ Cu＝Fe2

下列离子方程式书写正确的是

A. 氯化铁溶液溶解铜片：Fe³^＋+ Cu＝Fe²^＋+ Cu²^＋

B. 用醋酸溶液除水垢中的CaCO₃：CaCO₃+2H⁺=Ca²⁺+H₂O+CO₂↑

C. AlCl₃溶液中加入足量的氨水：Al³⁺+4NH₃·H₂O=AlO₂^-+4NH₄⁺+2H₂O

D. 金属钠与水反应：2Na+2H₂O=2Na⁺+2OH^-+H₂↑

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下列离子方程式书写正确的是 A. 氯化铁溶液溶解铜片：Fe3＋+ Cu＝Fe2

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