b. Hợp chất A có khối lượng mol là 152 và phần trăm theo khối lượng của các nguyên tố là 36,84%Fe 21,05%S, 42,11%0,

hoàn thành PTHH và cân bằng 1. CuO + H2SO4 loãng→

giupppppppppppppppppppppppppppppppppppppppppp

Mọi người bài làm sao v chỉ tôi với

IX. Choose the best option to complete the following sentences. 1. The cost of living in the countryside is much _________ than in the city. A. more low B. lower C. as low D. the lowest 2. This city has a lot of restaurants and places for entertainment. It’s much _________ my hometown. A. more convenient B. more convenient than C. convenient than D. convenient 3. Susan can run _________ Jennifer. A. quickly B. more quickly C. quickly than D. more quickly than 4. you should study _________ for the final exam. A. less hard B. more hard C. harder D. All are correct. 5. Jack recovered _________ than the doctors expected. A. more rapid B. more rapidly C. as rapidly D. as rapid 6. He has caused four traffic accidents this year. He drives _________ than he used to. A. more carelessly B. as carelessly C. less carelessly D. carelessly 7. Can’t you drive _________? We’re going to be late! A. as fast B. more fast C. faster D. Both B & C are correct. 8. She plays this role _________ the previous one. A. competently B. competently than C. more competently D. more competently than 9. He hit the ball _________ than his competitor. A. less powerfully B. less powerful C. as powerfully D. as powerful giúp giúp mình vớiiiiiiiiiiiii

Mọi ng ơi làm giúp em với ạ em đang cần gấp ạ. Em sẽ vote 5 sao và ctlhn

$Calli$: Chị yêu em Quang (trái tim) Hân - Tone màu sáng - Thêm vài chi tiết đẹp nữa nhaa #nhanh + đẹp = ctlhn

Giúp em với ạ em cảm ơn trước Use the correct tense of the verbs in bracket 1 It is the most beautiful house .I(ever/see)___ 2 He (be)___bom after his father(die)__ 3 Before he( move)__ to Vietnam last week,Robert(live)__in London for more than ten years 4He(break__his leg when he (ski)__last year.Up to now,he(not/ski)__anymore 5.Peter(work)__for this company for more than twenty five years and he intends to stay here untill he (retire)__in three years

|x+2|+|2x+4|=6. GIÚP MÌNH VỚI MN ƠI.

He didn’t say goodbye to anyone when he left the room. -> He left the room without ...............................