试题与答案

由含铜废料制铜的一种方案是: (1)写出下列步骤中的化学方程式:步骤Ⅲ:___

题型:实验题

题目:

由含铜废料制铜的一种方案是:

(1)写出下列步骤中的化学方程式:步骤Ⅲ:_________.步骤V:_________

(2)步骤Ⅱ后形成的蓝色溶液中的溶质是_________

(3)上述方案中可能造成空气污染的步骤是_________

答案:

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B.the mother in the picture was very pretty

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A.didn’t like banks

B.put some of his money in banks

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