Hòa tan hoàn toàn 14,56 gam hỗn hợp X gồm Fe, FeO, Fe2O3, Fe3O4 trong dung dịch H2SO4 đặc nóng, dư thu được dung dịch Y chứa m gam muối và 2,016 lít khí SO2 (đktc) là sản phẩm khử duy nhất. Giá trị của m là

MN lm nhanh giúp em với ạ em cảm ơn

Part 1: Change the following sentences into reported speeches. Use one of the reporting verbs given below: advise, suggest, warn, ask, refuse 1. “Why don’t we invite Jane to dinner tonight?” Mrs.Stone said. → 2. “You should stay in the shade and wear a hat, Mrs. Lan,” said the doctor. → 3. “Don’t touch the electric wires.”, Steve said to Mike. → 4. “I will not let you borrow my car tomorrow, Bill,” said Michael. → 5. “What were you doing at 5 p.m yesterday?” Mary asked me. →

M là dung dịch chứa 0,8 mol HCl. N là dung dịch chứa hỗn hợp 0,2 mol Na2CO3 và 0,5 mol NaHCO3. Đổ rất từ từ N vào M cho đến hết thu được V lít khí CO2 ở đktc. Giá trị của V bằng

Chứng Minh Rằng : P = $ 369 ^ 3 $ ` - ` $ 219 ^ 3 $ chia hết cho ` 1350 ` P = $ 372 ^ 3 $ ` - ` $ 128 ^ 3 $ chia hết cho ` 8000 `

lm dùm e vs mng e thật sự cần gấp, cảm ơn mng trc và hứa vote 5 sao

Tính nhanh: a, 10000 - 47 x 74 - 47 x 26 b, 3457 - 27 x 48 - 48 x 73 + 6543

Cái chết của cô bé bán diêm và kết thúc truyên gợi cho em điều gi?

chia đa thức một biến đã đc sắp xếp c,(4x^3-3x^2+1) : (x^2+2x-1)

Task 2. Write the negative (-) and interrogative form (?) of the following sentences. 1. He loves to play basketball. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 2. He thinks he is very handsome. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 3. We generally sing songs all together. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 4. It rains here in the summer. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 5. I study German on Monday. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 6. My daughter does the laundry. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 7. We see them every week. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 8. Jared sleeps in the afternoon. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 9. Karen and George brush their teeth twice a day. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ 10. That house is on the other side of the street. ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________