2012 Shanghai Question 40 Free-response Differentiating 2012_上海 Paper 40.若实验得到 2.42 g 样品(只含 CuO 杂质),取此样品加热至分解完全后,得到 1.80 g 固体,此样品中碱式碳酸铜的质量分数是 Answer key0.92 ☆ SaveCan't do it, show the explanation查看原卷 →