Hòa tan 5,6 gam Fe trong dung dịch chứa 10,95 gam HCl đến phản ứng hoàn toàn theo
phương trình phản ứng: Fe + HCl → FeCl2 + H2. Tính khối lượng FeCl2 tạo thành? Tính
thể tích H2 thu được ở đktc ?
2. We usually lit our houses with candles.
--> We used ______________________.
dùng by hoặc with
1 all the candles had been lit ... the same match
2 should the paper be cut ... a pair of siccisors
SOS
Fill in each numbered blank with one suitable word or phrase
Ẹ HÈM (Mấy anh đẹp zai ới )
1. My grandmother ……………… a fire in the living room.
A. Lit B. dropped C. owned D. fitted
2. His uncle ……………… of a serious illness.
A. Had B. held C. choose D. died
3. The sun suddenly ……………… from behind a cloud.
A. Made B. decided C. appeared D. changed
4. This house is mine; I ……………… it.
A. Escaped B. own C. burned D. grazed
5. He was late, but fortunately his friends waited for him.
A. Luckily B. magically C. cruelly D. lately
6. The lion has ……………… from its cage.
A. Equiped B. married C. stayed D. escaped
7. The villagers are going to ……………… their harvest festival in spring.
A. Tidied B. hold C. swept D. chose
8. I have an interesting ………………to tell you.
A. Fixture B. lamp C. folktale D. precautions
9. She was poor and didn’t have anything to wear. She only wore ………………
A. Rags B. modern equipment C. lost shoes D. electricity
10. What ……………… life like in your country when you were young?
A. Was B. is C. does D. did
Giúp mik với ạ I.Choose the word that has the underlined part pronounced differently from the others.(1pt) 1) A. throw B. know C. flower D. show 2) A. tight B. light C. lit D. high 3) A. awake B. fall C. mall D. tall 4) A. town B. mountain C. overpackage D. down
câu 1: áp dụng tính thể tích oxi có trong bình kín có thể tích 0,6l chứa đầy không khí
câu 2: Xác định CTHH của oxit trong các hợp chất sau:
CaO,CaCO3,CO2,SO2,SO3,H2SO4,HNO3,P2O5
Hóa học 8
giúp mik vs