下列化学用语正确的是（  ）

常见金属R与硝酸银溶液反应的化学方程式为R+3AgNO₃==3Ag+R(NO₃)₃，有关该反应的说法正确的是

①原子的数目 

②分子的数目 

③元素的种类

④物质的总质量 

⑤物质的种类 

⑥原子的种类．

⑴Happy New Year！ ____              A. Happy New Year.

⑵What's the time? ____               B. It's 8:15.

⑶Do you like banana? ____            C. Yes, I do.

⑷Which class are you in? ____         D. I'm in Class Four Grade Five.

⑸Who's this girl? ____                E. She's my sister.

⑹How's the weather today? ____      F. It's Cloudy.

⑺Open it and see. ____               G. Thank you.

⑻This is for you. ____                H. OK.

⑼How are you? ____                 I. I'm from China.

⑽Where are you from? ____          J. Fine, Thank you.

酸性氧化物____； 

碱性氧化物____；

酸____；

碱____；

盐____．