A:标准状况下,22.4 L CO2和O2混合气体中含有的氧原子数约为NA
B:2 mol SO2和1 mol O2混合在V2O5存在条件下的密闭容器中反应,反应后分子总数大于2 NA
C:常温常压下,0.1 mol铁在0.1 mol Cl2中充分燃烧,转移的电子数为0.3 NA
D:1 L 1 mol/L的K2CO3溶液中离子总数小于3NA
⑴How does your brother feel? ____ A. They are thirsty.
⑵How does your sister feel? ____ B. He's sad.
⑶How does your dog feel? ____ C. I am cold.
⑷How do they feel? ____ D. She's tired.
⑸How do you feel? ____ E. We are cool.
⑹How do we feel?____ F. It's hungry.