Tính m(g) H2O khi cho 2,4(l) H2 tác dụng với 7,6(l) O2 (đktc)

Câu 3: Tính m(g) H2O khi cho 2,4(l) H2 tác dụng với 7,6(l) O2 (đktc)
A. 1,92g B. 1,93g C. 4,32g D. 0,964g

Câu 8: Khí H2 dùng để nạp vào khí cầu vì:
A. Khí H2 là đơn chất. B. Khí H2 là khí nhẹ nhất.
C. Khí H2 khi cháy có tỏa nhiệt. D. Khí H2 có tính khử.

Câu 4: Cho quỳ tím vào nước vôi trong có công thức hóa học là Ca(OH)2, hiện tượng xảy ra là
A. Quỳ tím chuyển màu đỏ B. Quỳ tím không đổi màu
C. Quỳ tím chuyển màu xanh D. Không có hiện tượng

Câu 7: Hỗn hợp khí Hiđrô và khí oxi gây nổ mạnh nhất ở tỉ lệ về thể tích nào sau đây?
A. 1:1 B. 2:2 C. 1:2 D. 2:1

Câu 10: Dung dịch làm quỳ tím hóa đỏ là :
A. H2O B. Dung dịch NaOH C. Dung dịch H2SO4 D. Dung dịch K2SO4

8. Bob had someone _________his house.
A. paint B. paints C. painted D. painting

VI-Fill in each gap with one suitable compound noun in the box.

bull-fighting ice-skating bird-watching weight-lifting
water-fetching air-conditioning zebra-crossing window-shopping

1. My father likes __________________. He spends lots of hours watching the birds.
2. In______________, a traditional public entertainment in Spain, bulls are fought and usually killed in a bullring.
3.___________________ is the activity of lifting heavy objects as a sport or as exercise.
4. She enjoys looking at goods displayed in shop windows, so she goes _________________ very often.
5. ______________ is the activity of skating on ice.
6. In the _______________ contest, one person from each team has to run to the river to get the water.
7. _________________ in a system that makes the air inside a building, room or vehicle cool.
8. Pedestrians must cross the street on ________________________.

V-Complete the passage with the suitable words in the box.

relatives top preparations holiday put are although bought

Christmas is the biggest (1)_______of the year in most of Britain. Celebrations start on 24 December, Christmas Eve, (2) ___________there have been several weeks of (3) _________beforehand. The Christmas trees, presents, food, drinks and decorations have been (4) _________ Christmas cards have already been sent to friends and (5) ___________. About a week before Christmas, people usually (6) _____________ up their decorations and an angel on the (7) _____________of the Christmas tree. Family presents ( _____________ usually put under the tree.

IV-Rewrite the sentences, using reported speech.
1. Charles said, “I’m living in London now”.
________________________________________________________________________________
2. He said to us, “You are my best friends.”
________________________________________________________________________________
3. John said to me, “I don’t know what Fred is doing”
________________________________________________________________________________
4. She said, “I will answer the phone.”
________________________________________________________________________________
5. He said to his friends, “I must go home now.”
________________________________________________________________________________
6. Hoa said, “I can’t go out after 8 p.m.”
________________________________________________________________________________
7. She said to me, “I will come and see you as soon as I can”.
________________________________________________________________________________
8. Judy said, “John wants to come here but he isn’t very well”.
________________________________________________________________________________
9. Susan said, “My sister is coming to see me next week.”
________________________________________________________________________________
10. Judy said to me, “I’m going away for a few days. I’ll phone you when I get back.”
________________________________________________________________________________

III-Read the passage and choose the best answer to each of the following questions.
One of the festivals in the Buddhist tradition is called Vesak. It takes place in April or May, and it lasts for three days. The festival celebrates the life of the Buddha, and it also marks the beginning of the Buddhist year. During the festival, Buddhists decorate their houses and streets with flowers and paper lanterns. They give presents to monks and to poor people, and they send each other cards. In India, they sometimes buy birds in cages and set them free.

1. What is Vesak?
________________________________________________________________________________
2. When does it happen?
________________________________________________________________________________
3. How long does Vesak last?
________________________________________________________________________________
4. What do people do?
________________________________________________________________________________
5. What do they buy birds for?
__________________________________________________________________________