Bài 1. Viết phương trình phản ứng điều chế:

a/ Cu từ cho, CuSO4

b/ Pb từ pho, Pb(NO3)2

Bài 2. Từ NaCl, MgO, Fe2O3, đ CuCl2, hãy điều chế kim loại tương ứng bằng phương pháp thích hợp. Viết pthh.

I. Turn into Reported Speech.

1. My friends said : "Where are you going to spend your holiday, Nam?"

-> My friends asked

2. The teacher said to us: "Close your books, please "

-> The teacher told

3. "Did you go to the movie with them last night?"

-> He asked me

4. "I'm sorry. I broken your glasses, Mai" said Lam

-> Lam apologized

5. "My brother speaks French perfectly. " said Nam

-> Nam said

6. "I will come to see you if I have time" The man said to her

-> The man told

7. He said to me, "What would you say if someone stepped on your feet?"

-> He asked

8. Th mother said to her son, "Don't forget to look the door"

-> The mother reminded

II. Sentence Transformation.

1. Lucy hasn't worn that dress since Barbara's wedding.

->The last time

2. He started to work for what factory a year ago.

-> He has

3. My father hasn't been to Hanoi for 2 years

-> It is

4. She has never met such a fomous singer before

-> It is

5. My mother is reading a book. Hr started 1 hour ago

-> My mother has

6. She left university five years ago

-> It is five years

7. How long have you studied English

-> When