题型:填空题 What do you think ___________?[ ]A. he will happenB. will happen to himC. he happensD. happen to him 查看答案
题型:填空题 铜、镁合金4.6g完全溶于浓硝酸,若反应中硝酸被还原只产生4480mL的NO2气体和336mL N2O4气体(气体均为标况),在反应后的溶液中加入足量的NaOH溶液,生成沉淀的质量为 [ ]A.7.04g B.8.26g C.8.51g D.9.02g 查看答案