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很多化学实验我都是以失败告终的
Floor 1
巨大八爪鱼
7/13/13 9:41
1.比如铜在滤纸上,而滤纸又是湿的,我就没办法把铜粉拿下来了
2.我把铜片弄到酒精灯上烤,结果烤了半天铜上面就一层薄薄的氧化铜,碰一下就掉了
Floor 2
巨大八爪鱼
7/13/13 9:42
3.我把氢氧化钠往硫酸亚铁里面加,结果溶液出现深绿色沉淀,并不是书上说的那样
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