1)Đốt cháy hoàn toàn 8 gam Khí metan CH4 thu được Co2 và H2O Tính Khối lượng Khí O2 và khối lượng H2o thu được (Biết C=12, O=16, H=1) a)22 gam và 36 gam. b) 22 gam và 18 gam. c)22 gam và 9 gam. d)44 gam và 9 gam. 2)Có 3 lọ đựng 3 chất khí CH4,Co2,C2H4. Dùng những chất nào để nhận biết 3 chất này? 3) Hình bên dưới

if you/not/water/tree/everday/it/die.

Giúp em câu lý thuyết 159 160 161 với ạ có giải thích

7 May i wash the clothes for you ( viết câu cùng nghĩa ) would you mind 8 will you empty the garbage can? would you mind

Ex6: Read the following passage and choose the correct answer Throughout its history, Japan (1)________from the destructive sea surges, known as tsunami. Tsunamis (2)________by earthquakes, hundreds of which strike Japan each year. It is of utmost importance that Japan is always ready for this chain of natural disasters. In Japan, high-rise buildings in major cities (3)________so that they (4)_______rather than shake during earthquakes, making them safer. Besides, new regualtions for quake-proofing buildings came into force, and some local governments (5)_____citizens a structural health check on their homes. Some coastal areas have tsunamis (6)_______, while others (7)________built floodgates to withstand inflows of water from tsunamis. And if an earthquake above a certain magnitude (8)_________, the bullet train will stop and nuclear and other plants will automatically go into temporary shut-down. 1. A.had suffered B. has suffered C. had been suffered D. has been suffered 2. A.trigger B. are triggered C. triggered D. were triggered 3. A.design B. are designed C. designed D. were designed 4. A.sway B. are swaying C. are swayed D. have swayed 5. A. offer B. are offering C. are offered D. offered 6. A.home B. house C. shelter D. habitat 7. A.build B. are building C. are built D. have built 8. A.strikes B. is striking C. has struck D. is struck

Chuyen sang so nhieu nhieu cac cau sau Is that her knife The policeman in his room Does he has a white tooth

Giải giùm mik nha, tại vì đây là lần cuối mik cho bài toán 3 nên mik cho nhiều điểm xíu cho mí pạn có thêm động lực nò... ai nói chuyện với tui xíu đi, chán quá lun

Tommy suggested ...................the lights when we go out. (a. to turn off b. turning off c. turn off d. turned off)

Giải nhanh dùm mình để kt với !!!!

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