搜索 - 科创

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一、实验原理2Br–＋S2O8 2－ →2SO4 2－+Br2↑二、实验药品①过硫酸钾:135g（略过量）②溴化钠:100g ③少量稀硫酸（可不用）④浓氨水⑤少量浓硫酸三、实验器材①500ml全玻蒸馏...

今年年初二我买氯化银（25g250元），结果弄到了瓶AuCl4(三氯化金）可英文写的是：Silver chloride，蛋儿疼。一置换，就知道哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈...

就只要200+。。这种玩意都不会贵。我的航拍摄像机就130包邮。。像素和他的差不多，只有15g。唯一的问题就是遇到强烈撞击。。或者加速度太猛的话会自动关机。。正在录制的视频丢失。

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