24. I will never forget the day. I met you on that day

=>

25. The town was small. I grew up there 

=> 

26. 1960 was the year. The revolution took place in that year

=>

27. I apologized to the woman. I spilled her coffee

=>

28. They're the poscards. They arrived yesterday

 =>

29. The children sang aloud all night. This kept their parents awake

=>

30. Maria is studying in New York City. The city is called the '' Big Apple '' 

=> 

a) CaCl2 + NaNO3 ->

b) FeCl3 + KOH ->

c) Fe2O3 + CO ->

d) Mg(OH)2 + FeCl2 ->

e) NaOH + H2SO4 ->

Vt PTHH nếu có

Cho 11,2g CaO tác dụng với 500ml dd HCl 1M. Khối lượng muối thu được sau phản ứng là bao nhiêu