... mol khí cacbonic và 16 gam khí oxi
3. 2,4 g khí cacbonic và 2,24 lít khí oxi
4. 0 ,3 . 10
23
phân tử khí cacbonic và 0,45 . 10
23
phân tử khí oxi
Bài 8: Cho sơ đồ phản ứng: CaCO
3
+ HCl CaCl
2
... trăm của:
Fe trong : FeO; Fe
2
O
3
; Fe
3
O
4
; Fe(OH)
2
; Fe(OH)
3
; Fe
2
(SO
4
)
3
; FeSO
4
.7H
2
O.
C trong: CO; CO
2
; H
2
CO
3
; Na
2
CO
3
; CaCO
3
; Mg(HCO
3
)
2
.
Bài 2: Hãy tính khối lượng ... g.
33 ,33 % Na, 20,29% N, 46 ,37 % O và Mh/c = 69 g
23, 7%S, 23, 7%O và 52,6%Cl, biết hợp chất có tỉ khối hơi so với khí hiđro bằng 67,5 lần.
Phân tích 12,6 g một hợp chất vô cơ ta được 4,6 g Na, 3, 2...
...
pd
II 3=
) - Hình sao : (
pd
UU 3
=
,
pd
II
=
) - Điện áp mắc và tải là
p
U
- Nếu dùng giản đồ vector thì mỗi đại lượng điện trong mạch 3 pha đối xứng có cùng độ lớn nhưng lệch pha
3
2
π
Dạng ... H =
A
N
A
m
T
N
6 93, 0
=
λ
(Bq) *
0
H
=
A
N
A
m
T
N
6 93, 0
0
0
=
λ
(Bq) * H =
0
H
T
t
t
He
−
−
=
2
0
λ
*
Thời gian tính bằng giây * Đơn vị : 1 Ci = 3, 7.
10
10
Bq
Dạng 3: Định luật phóng ... Mạch điện 3 pha : Nguồn và tải có thể mắc sao hay tam giác ( nguồn ít mắc tam giác vì dòng điện lớn)
Phương Uyên CÁCDẠNGBÀITẬP VẬT LÝ 12
10
Phương Uyên CÁCDẠNGBÀITẬP VẬT LÝ 12 3
+ Tìm A...
... the Thames, (long)
2 This hotel's . more,comfort able than__ the other one. (comfortable)
3 I think this shop is…………………………… that one. (good)
4 The restaurant is………………………………… the cafe, (expensive
5 ... you're………………………………… your father now. (tall)
12 His homework was…………………………………. mine, (bad)
13 This film is ……………………………the one you wanted to see.
(interesting)
14 The journey is ……………………………………...
...
6.Would you like(come)……………………to dinner tonight
KEY
I/
1.d 2.d 3. a 4.b
II/
1.d 2.b 3. c 4.c
III/
1.answering
2.are going to see
3. is
4.was /didn’t have
5.wrote
6.to come
IV/
1.The weather today ... c.happy d.classmate
2. a. twelve b. letter c. sentence d. person
3. a. sun b. humor c. music d cucumber.
4. a. level b. prefer c.envelope d. energy
II/Choose the correct answer
1.He want……….you ... meet
2.Look!Nam is playing very well. He …………
a.is winning b. is going to win c. wins d. will win
3. Let’s ……the graduation ceremony in a beautiful restaurant !
a. celebrated b.celebrating c. celebrate...
... driving
license.
33 . (A) Help (B) the elderly (C) is (D) what volunteers often do.
34 . (A) It is (B) pleasant (C) to wake up and listen to the traffic (D) move in the street.
35 . I prefer the ... that should be corrected.
31 . (A) On July 2000, sixty-one provinces and cities (B) throughout Vietnam had completed (C) the
programme (D) of Illiteracy Eradication.
32 . I cannot afford (A) to ... swimming.
36 . synchronized swimming was considered an official sport tournament at
A. the 1948 Olympic Games B. the 1968 Olympic Games
C. the 1980 Olympic Games D. the 1984 Olympic Games
37 . Synchronised...
...
taking
30 . The picnic ________ because Peter has just had a traffic
accident.
a. will cancel b. will be cancelling
c. will be cancelled d. will have cancelled
Error Identification.
31 . Too ...
time per day are now a part of children development, generating
physiological and mental problems that are of growing concern
among experts.
36 . Reading ________.
a. completely stops when ... entertainment b. information c. difficulty d.
understanding
2. a. swallow b. subject c. digest d.
enough
3. a. imagine b. important c. example d.
wonderful
4. a. different b. carefully c. holiday d.
reviewer
5....
... i n g l
3. A n c a e m i r
4.E i n d r f
5. N c h f e r
Exercise 2. Read and complete the sentences.
1. Mai is from Viet Nam. She is Vietnames.
2. LiLi is from She is
3. Peter is ... Linda is from She is
Exercise 3 . Word cues
1. Mai / Viet nam / Vietnamese
EX : My name is Mai.
I’m from Viet Nam. I’m Vienanese
2. Nam / Viet Nam/ Vietnamese
3. Alan / Singapore / Singaporean.
...
3. Linda / England / English
?
?
4. Peter / America / American
?
?
Exercise 6. Reorder to make sentences.
1. Linda / my / is / name.
2. Canberra / from/ am / I .
3. ...
... Mr Kien is
30 . Does your class have twenty-five students ?
Are ?
31 . He goes to work at seven fifteen.
At a .
32 . Mr Minh usually drives to work .
Mr Minh usually goes
33 . How much is ... D.a can of
133 . We want ten ________ rice.
A. a dozen B. kilos C. kiloes of D. kilos of
134 . She wants ________beef.
A. a half kilo of B. a half kilo
C. half a kilo of D. half a kilo
135 . ________ ... countryside.
A. anyB. a lot C. lots of D. much
33 . What about to Hue.
A. go B. to go C. goesD. going
34 . There are apples in the refrigerator.
A. a B. an C. some D. any
35 . are you going to stay ? _ In a...