2014 Shanghai Question 11 Single-choice Differentiating 2014_上海 Paper 11.向饱和澄清石灰水中加入少量 $\mathrm{CaC_2}$,充分反应后恢复到原来的温度,所得溶液中( ) A. $c(\mathrm{Ca^{2+}})$、$c(\mathrm{OH^-})$均增大B. $c(\mathrm{Ca^{2+}})$、$c(\mathrm{OH^-})$均保持不变C. $c(\mathrm{Ca^{2+}})$、$c(\mathrm{OH^-})$均减小D. $c(\mathrm{OH^-})$增大、$c(\mathrm{H^+})$减小 Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →