—Thanks a lot for your book.I found it very interesting.

—________.I’m glad you enjoyed it.

A．All the best

B．It is nothing

C．No thanks

D．Very well

按要求写出下列变化，（1）（2）写化学方程式，（3）（4）写离子方程式

（1）实验室用Ca(OH)₂和NH₄Cl制取氨气：                                               

（2）氢氧化钠溶液与二氧化硅反应：                                                    

（3）将Na₂O₂粉末投入水中：                                                           

（4）向AlCl₃溶液中加入足量氨水：