GIÚP MÌNH LÀM BÀI NÀY NHA!!!THANKS.Bài 1:Rewrite the sentences, using have or has face.1) My hair is black2) Mrs. Huyen's eyes are round and black3) His eyes are blue4) Her cheeks are chubby5) Miss Huong's face is round6) Miss Thanh's legs are longBài 2: Fill in each blank with the correct verb.1) She ___ an oval face2) ___ Mai's hais long or short? - It ___ short3) Mai ___ short black hair4) He ___ tall and thin5) Tan ___ an athlete. He ___ very strong6) What ___ those?7) What color ___...
Đọc tiếp
GIÚP MÌNH LÀM BÀI NÀY NHA!!!
THANKS.
Bài 1:Rewrite the sentences, using have or has face.
1) My hair is black
2) Mrs. Huyen's eyes are round and black
3) His eyes are blue
4) Her cheeks are chubby
5) Miss Huong's face is round
6) Miss Thanh's legs are long
Bài 2: Fill in each blank with the correct verb.
1) She ___ an oval face
2) ___ Mai's hais long or short? - It ___ short
3) Mai ___ short black hair
4) He ___ tall and thin
5) Tan ___ an athlete. He ___ very strong
6) What ___ those?
7) What color ___ those bikes?
8) What color ___ Nam's eyes?
Bài 3: Fill in the blanks with the missing words: is, has or wear(s). And translate the passage into Vietnamese.
Mẫu: Kevin: Is short and slim. He wears glasses and he has blue eyes. His hais is brown....
Tom: ___ short and slim. He ___ glasses and he ___ green eyes. His hais ___ long, brown....
Paul: ___ tall. He ___ brown eyes and his hais ___ brown....
Ben: ___ short. He ___ brown eyes and his hais ___ long, black....
a) Phương trình hóa học của phản ứng:
2NaOH + CuCl2 → Cu(OH)2 ↓ + 2NaCl (1)
Cu(OH)2 → CuO + H2O (2)
b) Khối lượng chất rắn thu được sau khi nung:
Theo phương trình (1):
nNaOH = 2nCuCl2 = 0,4 mol
nNaOH dư = 0,5 – 0,4 = 0,1 mol
Tính khối lượng chất rắn CuO, theo (1) và (2) ta có:
nCuO = nCu(OH)2 = nCuCl2 = 0,2 mol
mCuO = 0,2 x 80 = 16g.
c) Khối lượng các chất trong nước lọc:
Khối lượng NaOH dư: mNaOH = 0,1 x 40 = 4g
Khối lượng NaCl trong nước lọc:
nNaCl = nNaOH = 0,4 mol
mNaCl = 0,4 x 58,5 = 23,4g.