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2楼: Originally posted by yuan0806 at 2020-11-13 15:39:55
硝酸银溶液加热煮沸,加入一定体积1%的柠檬酸三钠,继续加热煮沸20min,就可以了

为什么我做的时候什么动静也没有(>﹏< 溶液颜色无变化,也看不到任何东西的生成

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11楼2021-03-17 15:31:17
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