1/ I wish I were a sunflower

2/ He wishes he spoke Chinese

3/ He wishes he got the book

4/ We wish she kept in touch with us

5/ He wishes he understood us

6/ She wishes she knew that

7/ I wish I chose it

8/ It's a long time since we last met

\(n_{Zn}=\dfrac{m}{M}=\dfrac{20}{65}\approx0,3\left(mol\right)\)

\(n_{Al}=\dfrac{m}{M}=\dfrac{20}{27}\approx0,7\left(mol\right)\)

          \(Zn+H_2SO_4\rightarrow ZnSO_4+H_2\left(1\right)\)

TĐB:  0,3       0,3                          0,3    (mol)

            \(2Al+6HCl\rightarrow2AlCl_3+3H_2\left(2\right)\)

TĐB:    0,7      2,1                        1,05 (mol)

Tỉ lệ \(n_{H_{2\left(1\right)}}\) thoát ra ít hơn tỉ lệ \(n_{H_{2\left(2\right)}}\)

\(\Rightarrow\) Cân lệch về phía cốc 2

B là \(O_2\)

C là \(H_2O\)

D là \(KOH\)

E là \(Cu\left(OH\right)_2\)

Từ trái qua 

1) \(2KMnO_4\underrightarrow{t^0}K_2MnO_4+MnO_2+O_2\)

2) \(O_2+2H_2\underrightarrow{t^0}2H_2O\)

3) \(H_2O+K_2O\rightarrow2KOH\)

4) \(2KOH+Cu\left(NO_3\right)_2\rightarrow2KNO_3+Cu\left(OH\right)_2\)

5) \(Cu\left(OH\right)_2\underrightarrow{t^0}CuO+H_2O\)

1) The report is finished by noon

2) Five people are arrested by police

3) He is ordered to take a long rest by the doctor

4) The project is done today

5) This room is cleaned by somebody everyday

6) A letter is written by John every week

7) We are taught English by Mr.David

8) The exercises are corrected after each lesson by the teacher.

9) I am given some books by Mr. Smith every month

10) A dancing class is taught 

11) That book is taken by Bob from the desk

12) We aren't disappointed by the movie

13) The lecture isn't attended by the students today

14) The thief isn't captured by the police

15) The report isn't finished by Beth

16) A new procedure isn't developed by the company

17) Damage isn't caused by the fire

1) \(FeO+2HCl\rightarrow FeCl_2+H_2O\)

2) \(2H_2O\rightarrow2H_2+O_2\)

3) \(O_2+2Cu\rightarrow2CuO\)

4) \(CuO+H_2\rightarrow Cu+H_2O\)

2) có điện phân nhé

3) có nhiệt độ

4) có nhiệt độ luôn nhé

18.D

19.D

20.C

21.B

22.C

23.B

24.C

25.B

26.C

27.B

28.D

29.B

1/ She asked him how the journey had been.

2/ He asked me what I had been doing when he had seen me.

3/ She asked Mrs.Hoa to make that shirt for her.

vâng cảm ơn anh đã góp ý ạ. Lần sau em sẽ sửa.

1) He said his mother didn't like surfing the net.

2) She said she had been at home the night before.