1.往CuO和Fe粉的混合物中加入一定量的稀硫酸,并微热,反应停止后,滤出不溶物,并向滤液中加入一枚铁钉,发现铁钉表面有气泡产生,则( )(答案是A)A.不溶物一定是铜,肯定没有铁B.不溶物一
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![1.往CuO和Fe粉的混合物中加入一定量的稀硫酸,并微热,反应停止后,滤出不溶物,并向滤液中加入一枚铁钉,发现铁钉表面有气泡产生,则( )(答案是A)A.不溶物一定是铜,肯定没有铁B.不溶物一](/uploads/image/z/3533301-45-1.jpg?t=1.%E5%BE%80CuO%E5%92%8CFe%E7%B2%89%E7%9A%84%E6%B7%B7%E5%90%88%E7%89%A9%E4%B8%AD%E5%8A%A0%E5%85%A5%E4%B8%80%E5%AE%9A%E9%87%8F%E7%9A%84%E7%A8%80%E7%A1%AB%E9%85%B8%2C%E5%B9%B6%E5%BE%AE%E7%83%AD%2C%E5%8F%8D%E5%BA%94%E5%81%9C%E6%AD%A2%E5%90%8E%2C%E6%BB%A4%E5%87%BA%E4%B8%8D%E6%BA%B6%E7%89%A9%2C%E5%B9%B6%E5%90%91%E6%BB%A4%E6%B6%B2%E4%B8%AD%E5%8A%A0%E5%85%A5%E4%B8%80%E6%9E%9A%E9%93%81%E9%92%89%2C%E5%8F%91%E7%8E%B0%E9%93%81%E9%92%89%E8%A1%A8%E9%9D%A2%E6%9C%89%E6%B0%94%E6%B3%A1%E4%BA%A7%E7%94%9F%2C%E5%88%99%EF%BC%88+%EF%BC%89%EF%BC%88%E7%AD%94%E6%A1%88%E6%98%AFA%EF%BC%89A.%E4%B8%8D%E6%BA%B6%E7%89%A9%E4%B8%80%E5%AE%9A%E6%98%AF%E9%93%9C%2C%E8%82%AF%E5%AE%9A%E6%B2%A1%E6%9C%89%E9%93%81B.%E4%B8%8D%E6%BA%B6%E7%89%A9%E4%B8%80)
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