The woman told me her sister hadn't gone to Hanoi with her the previous year.

C --> in

A

A

B

1/2

23. B --> satisfied
24. D --> to
25. D ---> actresses

câu 7 từ goes đâu ra vậy?

1. Is --> Are
2. Let --> Let's
3. play --> playing
4. stay --> to stay
5. talk --> to talk
6. taking --> take
7. plays --> play
8. hot --> cold
9. many --> much

7. nMg=9,6/24=0,4 (mol)
PTHH: Mg + Cu(NO3)2 --> Mg(NO3)2 + Cu
          0,4  ----------------------------------->   0,4     (mol)
Theo PTHH: nCu=0,4 (mol)
--> mCu=0,4.64=25,6 (g) -->m=25,6