Nêu hiện tượng quan sát được và viết PTHH xảy ra, ghi rõ điều kiện phản ứng (nếu có):
1. Cho mẫu kẽm vào ống nghiệm chứa dd HCl(dư)
2. Cho mẫu nhôm vào ống nghiệm chứa H2SO4 đặc, nguội.
3. Cho từ từ dd BaCl2 vào ống nghiệm chứa dd H2SO4.
4. Cho từ từ dd HCl vào ống nghiệm chưá dd NaOH có để sẵn 1 mẫu giấy quỳ tím.
5. Cho đinh sắt vào ống nghiệm chứa dd CuSO4.
6. Cho dd NaOH từ từ vào ống nghiệm chứa dd CuSO4.
7. Cho từ từ dd AgNO3 vào ống nghiệm chứa dd NaCl.
8. Cho lá đồng vào ống nghiệm chứa dd HCl.
9. Rắc bột Al lên ngọn lửa đèn cồn
10. Đốt nóng đỏ một đoạn dây sắt cho vào bình chứa khí oxi.
11. Đốt sắt trong khí clo
12. Cho viên kiẽm vào ống nghiệm chứa dd CuSO4

Dạng 3: ĐIỀU CHẾ.
Bài 1: Từ các chất: Fe, Cu(OH)2, HCl, Na2CO3, hãy viết các PTHH điều chế:
a) Dd FeCl2. b) Dd CuCl2. c) Khí CO2. d) Cu kim loại.
Bài 2: Từ các chất: CaO, Na2CO3 và H2O, viết PTHH điều chế dd NaOH.
Bài 3: Từ những chất: Na2O, BaO, H2O, dd CuSO¬4, dd FeCl2, viết các PTHH điều chế:
a) Dd NaOH. b) Dd Ba(OH)2. c) BaSO4. d) Cu(OH) e) Fe(OH)2

Adj + to V và adj + that + clause: Rewirite the sentences without changing the meaning. Remember to use the structure: adjective + that clause

1. We are delighted. Everyone enjoys our homemade cakes

2. He is so pleased. His parents are waiting at the school gate to take him home

3. I am so happy. My brother got a safe flight

4. We are afraid. We can't join the party with you

5. I'm so sorry. I lost your favorite pen on my way home

6. Thu was anxious. She has lost her identity card

7. She is certain. Her son will be accepted to a high school for the gifted

8. My father is upset. My brother wants to drop out of high school

9. He is amazed. His colleagues celebrate his brithday in a fun way

10. She was worried. Her father's surgery would be unsuccessful

VI. Reported Speech

1. She said, "I can't find my umbrella"

2. They said, "We are learning English now"

3. " My friend is coming next week", Tome said

4. "I'll help my mum with housework this weekend" he said

5. "We shall overcome this difficulty", they said

6. "My father is a doctor here", my friend said

7. "I am going on holiday tomorrow", the boy said to his neighbor

8. "You will have to finish all these exercises before next week", the teacher said to his students

9. "I came back here early yesterday", she said

10. "I've broken the vase", she said

11. "I will never see you again" the boy said to the girl

12. He said to her, "You are my friend"

13. Johnny said to his mother, "I don't know how to do this exercise"

14. "We are waiting for the school bus", said the children

15. Mary said, "My father died a year ago"

Comparions : Rewrite the sentences keeping the same meaning.

1. My house is bigger than your house

Your house

2. The black car is cheaper than the red car

The red car

3. This film is more interesting than that one

That film is

4. My kitchen is smaller than yours

Your kitchen

5. My mother cannot cook as well as me

I can

6. She has a house which is not as modern as my house

My house is

7. The movie was boring. I had been thought it was interesting

The movie was

8. He cannot play tennis as well as Jack

Jack can

9. I did not spend as much money as you

You spent

10. I didn't think this book is expensive as it is

This book is

Cho 2 góc AOB và BOC kề bù và BOC=1/2 AOB. Tính số đo góc AOB.

1. I can't sing this song

I wish

2. He was punished by his mother

I wish

3. They won't come here again

I wish

4. He won't go swimming with me

I wish

5. We didn't understand them.

I wish

Viết một đoạn văn nêu suy nghĩ của em về quan niệm sự tự tin vào bản thân rất quan trọng đối với mỗi người khi bước trên đường đời