来自雷旭升的问题
硫酸与氢氧化钠中和反应,验证硫酸是否过量的办法所有的都列举出来,包括方程式
硫酸与氢氧化钠中和反应,验证硫酸是否过量的办法
所有的都列举出来,包括方程式
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2020-02-20 15:34
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车志宇
多了去了.只要能够证明剩余溶液中含有H2SO4即可.比如你可以用锌粒,或者用氧化铜,或者用Na2CO3.当然还有一些其他的方法,就不再一一举例方程式：Zn+H2SO4→ZnSO4+H2↑(产生气体)、CuO+H2SO4→CuSO4+H2O（氧化铜溶解）...
2020-02-20 15:37:37
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