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A. Soạn thảo văn bản tiếng việt
B.tra cứu từ điển anh việt
C. Vẽ 1 bức tranh dựa vào phần mềm paint
D. Gửi 1 bức thư điện tử cho khách hàng

Mỗi địa chỉ thư điện tử
A. Có thể tạo nhiều thư điện tử giống nhau
B. Chỉ có duy nhất trên toàn thế giới
C.chỉ có duy nhất trên toàn thế giới
D. Tất cả đều sai

5. The milk is very hot. Mary cannot drink it quickly.
→ The milk is too __________________________________________________________
→ The milk is not ___________________________________________________________
→ The milk is so _____________________________________________________________
→ It is such __________________________________________________________________

4. We were extremely busy last summer. We could not take a holiday.
→ We were too ___________________________________________________________
→ We didn't have _________________________________________________________
→ We were so _______________

3. That house is very expensive. I cannot buy it.
→ That house is too _____________________________________________________________
→ That house is not ___________________________________________________________
→ That house is so __________________________________________________________
→ That is such ________________________

9.Many people in the world speak English as a compulsory language.
-----> English……………………………………………………………………………
10. The farmers /often play/ the flute/ when they take a break.
===> The flute………

6People /wear/ masks /to avoid catching Covid 19 virus.-
----> Masks……………………………………………………………………………………
7 People play the violin with a bow..
====>The violin…………………………………………………………………………………
8My sister waters the flowers every morning.
====> The flowers…………………………………………………………………………
8Our English teacher holds a discussion every Sunday .
====>A discussion………………………

Australian people/ play/ the didgeridoo.
--->The didgeridoo ..………………………………………………………by …………
They /play/ the sao truc/ by bowling air into the hole.
--->The sao truc …….………………………………………………………………
They /clean /the classroom /before the new school year coming.
=====>The classroom………………………………………………………………………

22. They stopped catching the fish in the pond three months ago.

→ The fish in the pond were last__________________________________________________
→ The fish in the pond haven't ___________________________________________________
→ It's been three months since the fish in the pond were last ______________________

22. They stopped catching the fish in the pond three months ago.
→ They haven't____________________________________________________________
→ It's been three months since they ________________________________________________
→ The last time the fish in the pond ______________

21. The boy has never been arrested before.
→ This is ______________________________________________________________
22. They stopped catching the fish in the pond three months ago.
→ The last time they _________ the fish in the pond ____ three _____________
→ They last _____________________________________________________________

17. You are too noisy!
→ I wish _________________________________________________________________________________
18. They work too noisily for me to sleep!
→ I wish _________________________________________________________________________________

14. She doesn't speak Korean as well as Jan does.
→ She wishes _____________________________________________________________________________
15. He can't run as fast as a leopard.
→ He wishes ______________________________________________________________________________
16. They won't help us with chores.
→ We wish _______________________________

5. The company will dismiss me next month.
→ I wish ________
9. It's a pity that it never snows in my city.
→ I wish _________________________________________________________________________________
10. We can't surf the web in our village.
→ We wish _________________________________
12. It is too hot in my room.
→ I wish _________________________________________________________________________________
13. They speak too fast for me to understand.
→ I wish _________________________

Gọi tên theo danh pháp tiếng anh iupac -Tên kim loại (hoá trị nếu kim loại nhiều hoá trị) + tên gốc acid -Gốc acid có oxi: chuyển âm cuối của tên nguyên tố phi kim trung tâm (rút gọn) tương ứng thành ate (đủ oxi) /ite (thiếu oxi) -Gốc acid không có oxi: chuyển âm cuối của tên nguyên tố (rút gọn) tương ứng thành ide +MgCl2 Na2SO4 K3PO4 +AgNO3 FeS Fe2S3 +CaC2 KI Mg3N +BaSO3 Zn(NO3)2

Gọi tên theo danh pháp tiếng anh iupac Tên kim loại (hoá trị nếu kim loại nhiều hoá trị) + hydroxit (hydroxide) NaOH: Ca(OH)2 Al(OH)3 Pb(OH)2: Pb(OH)4 KOH Fe(OH)2 Fe(OH)3 Mg(OH)2 Cu(OH)2 Zn(OH)2

Gọi tên thoa danh pháp iupac tiếng anh ạ hydro + tên phi kim (rút gọn) + ic + acid H2SO4: H2SO3: H2S: HCl: HBr: H2SiO3: H3PO4: H3PO3: H2CO3: HNO3: HNO2:

Gọi tên thao danh pháp iupac tiếng anh ạ Tên kim loại (hoá trị nếu kim loại nhiều hoá trị) + oxit (oxide) Na2O K2O Ag2O CaO MgO BaO Al2O3 Cr2O3 Fe2O3 PbO PbO2 FeO CuO CrO CrO3

Gọi tên theo danh pháp iupac(tiếng anh) CO: NO SO2 CO2 NO2 SO3 N2O Cl2O N2O3 Cl2O3 P2O3 N2O5 P2O5 Cl2O5 Cl2O7

.Bài 14 : Người ta thả miếng nhôm nặng 20g vào 240 ml dung dịch CuCl2 0,5mol/l. Khi nồng độ dd CuCl2 giảm 50% ta lấy miéng nhôm ra rửa sạch , sấy khô thì cân nặng được bao nhiêu g? Cho rằng Cu được giải phóng ra bám hết vào miếng nhôm.