题目

取一定量的Na2CO3和Na2SO4混合物溶液与过量盐酸反应，生成2.016 L CO2（标准状况下），然后加入足量的Ba(OH)2溶液，得到沉淀的质量为2.33 g。试计算混合物中Na2CO3和Na2SO4的物质的量分别为多少。 答案：0.05mol   0.01mol 解析: 略 第Ⅱ卷（二部分，共35分） 第一节  短文填词（共10小题，每小题1分，满分10分） 阅读下面短文，根据以下提示：1）汉语提示 2）首字母提示 3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整的写右边相对应的横线上，所填单词要求意义准确，拼写正确 Dear Sir, I’m a senior high school student. I was caught _______（作弊）in        1________ the exam and got ________（惩罚）.I know I was totally wrong            2________ and now I f__________ so ashamed. To my teachers, I was once                     3________ an outstanding student. I did well ______ my school work most               4________ of time. In __________, I worked hard in the student union.                          5________ Before the exam, I had a strong d__________ to get a good                            6________ mark to please my teachers. Now I regret ________ I have done,            7________ though I know the result can’t be __________（改变）. Recently           8________ I’m t___________ by the disturbing problem. I just dare not tell                     9________ my parents about it and I’m worried about my ________（将来）             10_______ What should I do? Jimmy