搜索 - 科创

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方程式: 1、硫酸根离子的检验: BaCl2 + Na2SO4 = BaSO4↓+ 2NaCl 2、碳酸根离子的检验: CaCl2 + Na2CO3 = CaCO3↓ + 2NaCl 3、碳酸钠与盐酸...

引用全变写的https://www.kechuang.org/t/28390第14楼hefanghua于2010-08-21 19:59发表的 :灯丝原本就是NaNO3的，还是后期放进去的？后期怎么...

引用 smith:是的，KNO3确实消耗很快，不过我前几天称了称一瓶KN，发现重量还增加了我其他的药品不仅盖好还用塑料袋封装好，这瓶KN就放在外面，盖子不紧，受潮了 KNO3不吸湿吧？混了NaNO3或...

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