�氧化铜和铁粉的混合物中加入一定量的稀硫酸.微热.反应后过滤�滤液中插入铁片有气泡产生以下判断正确的是aa.不溶物中一定含有铜 B.滤液 Template




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tomski�氧化铜和铁粉的混合物中加入一定量的稀硫酸.微热.反应后过滤�滤液中插入铁片有气泡产生以下判断正确的是aa.不溶物中一定含有铜 b.滤液 coloring