Bai 1: Cho các chất sau: Mg(OH)₂ ; KOH ; Ba(OH) ₂

a) Chất nào td với CO₂ ? viết. phương trình

b) Chất nào td HCl? Viết PT

c) Chất nào bị nhiệt phân hủy? Viết PT

Bài 2: Cho các chất Na₂CO₃ ; NaCl ; CuCl₂

a) Chất nào td với Sắt? PT?

b) Chất nào td với NaOH? PT?

c) Chất nào td với AgNO₃ ? PT?

cho tam giác MNPđuong cao MK có MN =12cm , MP =5 cm, NP =13cm

ạ) MMP là tâm giác gì? tính MK?

b) Tính số do góc P, N ( làm tròn đến phút?)

cho tam giác DEF vuông tại D đường cao DI =6cm , IF = 8 cm. ( KQ làm tròn số thập phân thứ2)

a) Tính độ dài DE, ĐỂ

b) tính số do góc E, F

c) kẻ IK vuông góc DC ( K thuộc IK.) tính IK và diện ticha

1.What is the depth of the Pacific Ocean?

=> How

2. Would you like me to cook dinner tonight?

=> I will

3. Remember to wake me up at 6:30 tomorrow morning

=> Don't Forget

1. What is the price of this face mask?

=> How much

2. How long is the Mekong River?

=> What

3. How wide is the West Lake?

=> How

4. What is the age of your son?

=> How

5. Where Do you live?

=> What

6.What is your birthday?

=> What is

7. I have fewer books than he does

=> He has

1. What is the price of this face mask?

=> How much

2. How long is the Mekong River?

=> What

3. How wide is the West Lake?

=> How

4. What is the age of your son?

=> How

5. Where Do you live?

=> What

6.What is your birthday?

=> What is

7. I have fewer books than he does

=> He has

1. Don't let me forget to phone my sister

=> Remind

2. Would you mind turning the radio down?

=> Could you

3. Please don't interrupt me all the time

=> Would you mind

4. We don't eat at hime. We went to a restaurant instead

=> instead of

5. He looks older when he wears glasses

=> glasses make

6. My father said I could use his car

=> My father allowed

7. Sue is excited about going to Spain on holiday

=> Sue is looking

8. I would like you to help me put the chair away

=> Do you mind

9. I'm always nervous when I travel by air

=> Traveling

10. The sudden noise caused me to jump

=> the sudden noise made

11. Betty let Karen keep the kitten

=> Betty allowed

12. It's not a good idea to travel during the rush hour

=> It's better to avoid

13. Don't stop him doing what he wants

=> Let

14. At first I didn't want to apply for the job but Sarah persuaded me

=> Sarah persuaded

15. My lawyer said I should'n stay anything to the police

=> my lawyer advised

16. They got married. They didn't tell any of their friends

=> they got married without

17. He was sorry he hadn't said goodbye to her at airport

=> He ragrett

1. I get to work in twenty minutes

=> I spend

2. my daughter spends two hours studying English everyday

=> It

3. It took him the whole day to rapair the radio

=> He spent

4. The flight to Moscow lasted three and a half hours

=> It took

5. He would prefer you to pay him immediately

=> He'd rather

6. I would prefer you to deliver the sofa on Friday

=> I'd rather

7. I don't really want to go out tonight

=> I'd rather

8. I'd rather not see him tomorrow

=> I don't want

9. I don't really want to have lunch yet

=> I'd rather

10. I don't really want to go to the museum

=> I'd rather

11. I want you to cook the dinner now

=> I'd rather

12. It's time we went to bed

=> It's time

13. It's time for you to start to work

=> It's time

14. I don't fine it difficult to get up early in the morning

=> I am used

15. Please don't play your music so loudly

=> Would you mind

16. Ba is interested in telling jokes

=> Ba enjoys

. it takes me about an hour to watch TV everyday

=> I spend

2. Nowadays, children would rather play computer games than take park in outdoor activities.

=> Children nowadays prefer

3. We spend two hours doing this exercise

=> It

4. They often went to Vung Tau at weekend

=> They used

5. My brother likes to go swimming better than to play computer games

=> My brother prefers

6. My French friend finds driving on the left difficult

=> My French friend isn't

7. I advised you to put your money in the bank

=> you'd better

8. He prefer s golf to tennis

=> He'd rather

9. It took us five hours to get to London

=> We

10. He wrote the report in two hours

=> it took

1. it takes me about an hour to watch TV everyday

=> I spend

2. Nowadays, children would rather play computer games than take park in outdoor activities.

=> Children nowadays prefer

3. We spend two hours doing this exercise

=> It

4. They often went to Vung Tau at weekend

=> They used

5. My brother likes to go swimming better than to play computer games

=> My brother prefers

6. My French friend finds driving on the left difficult

=> My French friend isn't

7. I advised you to put your money in the bank

=> you'd better

8. He prefer s golf to tennis

=> He'd rather

9. It took us five hours to get to London

=> We

10. He wrote the report in two hours

=> it took