问题 选择题

将0.1mol 铜与40mL 10mol•L-1HNO3充分反应后,溶液中含a mol H+,由此可知(  )

A.生成的气体在标准状况下的体积为4.48L

B.生成的气体在标准状况下的体积为1.49L

C.被还原的硝酸的物质的量为(0.2-a)mol

D.反应后溶液中所含NO3-的物质的量为0.2mol

答案

答案:C

填空题

解释下列词语。

⑴畅泳:____________________________                                                     

⑵反诘:____________________________                                                     

⑶理直气壮:________________________                                               

⑷雄辩:____________________________                                                     

⑸感慨:____________________________                                                     

⑹引申:____________________________                                                     

⑺顽固:____________________________                                                     

⑻成见:____________________________                                                     

⑼如饥似渴:________________________                                               

⑽指教:____________________________                                                     

⑾坦怀:____________________________                                                     

⑿博爱:____________________________                                                     

⒀人饥己饥、人溺己溺:__________________                            

⒁若无其事:____________________________ 

问答题