1 12g anken cộng vừa đủ với br2 ta thu được 4 32g sản phẩm cộng vậy công thức của anken có thể là
nhung bai tap hay
Ngày tải lên :
20/09/2015, 06:03
... a = ( 14 n + 18 )x + ( 14 m + 18 )y hay a = 14 nx + 18 x + 14 my + 18 y Ghép ẩn số đợc a = 14 (nx + my) + 18 (x + y) Thay giá trị biết đợc a = 14 .0,08 + 18 .0,03 = 1, 66g Ví dụ 2: Đun p gam hỗn hợp rợu với ... KOH 1M với 50 ml dd H3PO4 1M nồng độ mol/lit muối dd thu đợc là: 41 A 0,33M B 0,66M C 0 ,44 M D 1, 1M E Kết khác Câu 15 : Hỗn hợp X gồm khí H2S CO2 có tỉ khối so với H2 dx = 19 ,5 Thể tích dd KOH 1M ... C 1, D 2, E 1, 2, Câu 4: Giữa bán kính hạt nhân (R) số khối nguyên tử (A) có mối liên hệ nh sau: R = 1, 5 .10 -13 A1/3 cm Khối lợng riêng hạt nhân (tấn/cm3) A 11 6 .10 6 B 10 6 .10 3 C 0 ,11 6 .10 6 D 11 ,6 .10 6...
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Khẩu phần ăn và tình trạng thiếu máu của học sinh nữ hai trường phổ thông trung học B và C huyện Lục BÌnh, Hà Nam
Ngày tải lên :
13/03/2013, 14:19
... loại 18 9,5 ± 10 4, 5 15 5,7 ± 11 5,6 17 7,8 ± 11 1,5 17 5 ,4 ± 11 0 ,4 Quả chín 13 3,0 ± 14 2,2 12 8,6 ± 11 8,3 17 1,8 ± 19 2,3 14 7,8 ± 15 9,7 Dầu mỡ 7,2 ± 11 ,2 9,0 ± 9,3 6 ,4 ± 10 ,4 7 ,4 ± 10 ,3 Thịt loại 63 ,1 ± 47 ,3 ... khối Thiếu máu Lớp 10 Lớp 11 Lớp 12 Số HS % Số HS % Số HS % Có 24 12 ,6 8,7 24 16 7 87 ,4 94 91, 3 10 5 81, 4 Tổng 19 1 10 0 10 3 10 0 12 9 (χ2) 18 ,6 Không p 10 0 >0,05 Nhận xét: Khối 11 có tỷ lệ học sinh ... 382 ,1 ± 14 6,9 366 ,4 ± 13 6.8 >0,05 Khoai củ 2,7 ± 15 ,2 1, 6 ± 12 ,8 2,2 14 ,1 >0,05 Lạc vừng 20,7 ± 42 ,0 30,9 ± 61, 7 25,6±52 ,4 >0,05 Rau loại 14 6,6 ± 86,9 206,9 ± 12 4, 8 17 5 ,4 11 0 ,4
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Tài liệu Công Nghệ Thi Công Dầm Hộp Liên Tục B.T.C.T.D.Ư.L. Bằng Phương Pháp Đúc Hẫng ppt
Ngày tải lên :
20/01/2014, 23:20
... CHIếU NGANG CầU 11 70 2x150=300 15 0 15 6 10 0 330 12 0 60 260 Cột chống TC L =1. 0m 15 0 12 0 15 0 12 0 42 5/2 17 5 10 0 2x100=200 60 48 0 2x100=200 260 12 0 Cột chống TC L =1. 5m 12 0 42 5/2 45 0 17 5 2 .1. 5 Ph-ơng pháp ... long 13 70 335 45 45 17 0 270 610 17 0 45 335 45 700 30 công nghệ thi công dầm hộp btct d.-.l Hình 15 Thanh ứng suất ổn định dầm theo ph-ơng nằm ngang C L 13 70 45 335 10 8.2 27 17 0 27 13 5 34 37 Tim ... 300/2 660/2 300x100 45 0x200 12 5x125 30 205.9 45 0x200 345 300x100 315 18 7.2 30 87.5 45 0x200 45 0x200 Thanh CĐC D38 12 5x125 45 0x200 500/2 công nghệ thi công dầm hộp btct d.-.l Công việc đổ bê tông cho...
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Tài liệu Engineering Mechanics - StaticsChapter 1Problem 1-1 Represent each of the following combinations of units in the correct SI form using an appropriate prefix: (a) m/ms (b) μkm (c) ks/mg (d) km⋅ μN Units Used: μN = 10−6N kmμkm = 109−6Gs = 10 s pptx
Ngày tải lên :
17/02/2014, 14:20
... 10 − 12 m kg⋅ s nN = 10 −9 N Given: m1 = kg m2 = 12 kg d = 800 mm Solution: F = G m1 m2 d F = 10 .0 nN W1 = m1 g W2 = m2 g W1 W1 = 78.5 N W2 = 11 8 N = 7.85 × 10 W2 F = 1. 18 × 10 F 10 Problem 1- 17 ... Mechanics - Statics Chapter Given: F = 200 N F = 15 0 N θ = 45 deg φ = 30 deg Solution: F 1x = F sin ( θ ) F 1x = 14 1 .4 N F 1y = F cos ( θ ) F 1y = 14 1 .4 N F 2x = −F cos ( φ ) F 2x = 12 9.9 N F 2y ... Used: μm = 10 −6 m Mm = 10 m Mg = 10 gm kg = 10 gm −3 ms = 10 s Given: a1 = 6 84 μm b1 = 43 ms a2 = 28 ms b2 = 0. 045 8 Mm c2 = 348 mg a3 = 2.68 mm b3 = 42 6 Mg Solution: a1 ( a) b1 = 15 .9 a2 b2...
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Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C ppt
Ngày tải lên :
06/03/2014, 01:20
... users 14 5 TABLE 1- 1 Key Characteristics of Hepatitis B and Hepatitis C 16 TABLE 1- 2 Burden of Selected Serious Chronic Viral Infections in the United States . 21 TABLE 4 -1 Hepatitis ... Diseases 18 6 (11 ) :15 58 -15 64 Hauri, A M., G L Armstrong, and Y J Hutin 20 04 The global burden of disease attributable to contaminated injections given in health care settings Int J STD AIDS 15 (1) :7 -16 ... Infection Status3 ,4, 5 HBV 0.8 1. 4 About 65% 3,000 Yes Birth, blood, sex million 2% HCV 2.7–3.9 About 75% 12 ,000 No Birth, blood, sex combined million HIV/AIDS 1. 1 million About 21% 14 , 016 No Birth,...
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Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C doc
Ngày tải lên :
06/03/2014, 01:20
... People, 17 3 Illicit-Drug Users, 17 5 Pregnant Women, 18 1 Correctional Settings, 18 4 Community Health Facilities, 18 6 Targeting Settings That Serve At-Risk Populations, 18 9 References, 19 2 14 7 A COMMITTEE ... Current Status, 14 8 Components of Viral Hepatitis Services, 15 4 Identification of Infected Persons, 15 4 Prevention, 16 6 Medical Management, 16 6 Major Gaps in Services, 17 0 General Population, 17 0 ... control—United States Viral Hepatitis Vaccines—therapeutic use—United States WC 536 H5322 2 010 ] RA 644 .H4H37 2 010 616 .99 '43 6—dc22 2 010 00 319 4 Additional copies of this report are available from the National...
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Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C pdf
Ngày tải lên :
22/03/2014, 17:20
... Affairs The National Viral Hepatitis Roundtable Advising the nation / Improving health 500 Fifth Street, NW Washington, DC 200 01 TEL 202.3 34. 2352 FAX 202.3 34 . 14 12 www.iom.edu The Institute of Medicine ... School of Public Health, Houston, Texas Stacene R Maroushek Staff Pediatrician, Department of Pediatrics, Hennepin County Medical Center, Minneapolis, Minnesota Harvey J Alter Chief, Infectious Diseases ... federal agencies and state agencies, should provide resources for the expansion of community-based programs that provide hepatitis B screening, testing, and vaccination services that target foreign-born...
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harmonic analysis and partial differential equations - b. dahlberg, c. kenig
Ngày tải lên :
31/03/2014, 15:16
... 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 ... 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 00000000000000000000000000 11 111 111 111 111 111 111 111 111 ... 11 111 111 111 111 00000000000000 11 111 111 111 111 00000000000000 11 111 111 111 111 00000000000000 11 111 111 111 111 00000000000000 11 111 111 111 111 00000000000000 11 111 111 111 111 00000000000000 = + 11 111 111 111 111 ...
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QUI TẮC CHUYỂN VẾ A+B+C=D, A+B=D-C ? doc
Ngày tải lên :
18/06/2014, 13:20
... 4) = - Học sinh thực ví dụ Giải a) x – = -6 - Học sinh làm ?3 x =-6 +2 x = -4 b) x – ( -4) = x = + ( -4) x = -3 4. / Củng cố : Củng cố phần làm tập 61 , 62 SGK trang 87 5./ Dặn dò : Về nhà học làm ... Gv hướng - Học sinh làm ? dẫn cho học sinh thấy không cần thêm số hạng vào hai vế đẳng x + = -2 x + – = -2 – thức mà cần chuyển x = (-2) + ( -4) số hạng từ vế sang x = -6 vế với điều kiện phải ... = b + c hai đĩa cân (gọi vật c) học sinh quan sát xem cân - Lấy hai vật vừa bỏ vào khỏi có cân không ? đĩa cân - Như ta có tính chất tính chất ? Nếu a + c = b + c a =b Nếu a + c = b + c a =...
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22. There is only a chair ............... leg was broken. a. whose b. which c. when d. that a 23. potx
Ngày tải lên :
18/06/2014, 17:20
... attacking c attack d would attack a 13 There is no alternative; the president must approve the bill if Congress passes it a chance of agreement b doubt c other choice d mistake c 14 The peg ... becomes sunny c 40 She insisted the importance of learning English a on b in c about d for a 41 He wants me to carry out his instructions a establish b follow c work on d perform d 42 I'm waiting ... with a 39 After lunch, Mary cleared the table a cleaned the table b took the table away c removed the tableware from the table d all are correct c 40 It is high time we left here, ? a isn't...
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b. Was c. Had d. Have b 22. "Did Susan use to be your next-door neighbor?" "Yes, but I potx
Ngày tải lên :
18/06/2014, 17:20
... early a will start b would start c starts d will have started c 45 I find it quite to talk in front of a group of people a embarrass b embarrassing c embarrassed d embarrassment b 46 It was raining ... c 41 Tom’s car hit a tree As a result, he was badly injured a hurt b inside c hit d distant a 42 The manager had his secretary ……… the report for him a type b typed c typing d to type a 43 ... it is terribly to live in a uncomfortable b comfortable c comfort d comfortably a 24 Some things, dry wood for example, fire very easily a catch b take c reach d get a 25 Mary opened the...
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30. This .................. for his behavior. a. amounts b. accounts c. arrives d. approaches b pot
Ngày tải lên :
18/06/2014, 17:20
... c be cut d to cut b 47 She has always wanted to visit Washington DC, of the United States a is the capital b that is the capital c which the capital is d the capital d 48 Barbara is not as ... regularly d Test 44 Pronunciation a taught b thought c bought d draught d a pain b fountain c complain d explain b a large b stage c league d lounge c a cape b captain c capsule d capital a a boat ... d 14 The train from Danang city is running approximately 10 minutes a hold up b delay c late d belated c 15 Please turn on the fan It is very hot a go on b switch on c take on d put on b 16 ...
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a. annoying b. arguing c. discussing d. shouting b 22. A good clock always keeps ...………. ppt
Ngày tải lên :
18/06/2014, 17:20
... c 41 Tom’s car hit a tree As a result, he was badly injured a hurt b inside c hit d distant a 42 The manager had his secretary ……… the report for him a type b typed c typing d to type a 43 ... about d 14 You can always rely on Kate She is very a depend b dependable c dependent d independent b 15 The police are looking for a man of height a medium b extra c tall d special a 16 English ... driving d 40 I came to the station just in time a Fortunate b Fortunately c Unfortunate d Unfortunately b 41 You had to give a full of your car when you reported it stolen a account b detail...
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210. The change from day to night results the rotation of the Earth. a. change b. to c. results d. potx
Ngày tải lên :
18/06/2014, 17:20
... might > d 310 Is finish a job you have started very important to you? a Is b finish c have started d to you > d 311 Not smoking and drinking alcohol are the most important things you can talking ... composed b for c also d more serious > c 240 Among the world’s 44 richest countries there has been not war since 19 45 a Among the b richest c there d not > d 2 41 Caricature, a type of comic exaggeration, ... better d any > d 340 In my opinion that girl is enough beautiful to be a movie star a In my opinion b enough c to be d star > b 3 41 Jim’s counselor recommended that he should take a foreign language...
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– THE GRE VERBAL SECTION – 6. b. 7. c. 8. e. 9. b. 10. a. 11. c. 12. c. 13. b. Groups doc
Ngày tải lên :
18/06/2014, 17:20
... factors: and itself Example: 2, 3, 5, 7, 11 , 13 , 17 , 19 , 23, ■ A composite number is a number that has more than two factors Example: 4, 6, 9, 10 , 12 , 14 , 15 , 16 , The number is neither prime ... expanded form, this number can also be expressed as: 12 68. 345 7 = (1 ϫ 1, 000) + (2 ϫ 10 0) + (6 ϫ 10 ) + (8 ϫ 1) + (3 ϫ 1) + (4 ϫ 01) + (5 ϫ 0 01) + (7 ϫ 00 01) Comparing Decimals Comparing decimals is actually ... choice given ෆ)(25 + 11 ) 11 ͙ (42 – 6ෆෆ a b 18 c 36 d 12 0 e 1, 296 12 What is the remainder when 63 is divided by 8? a b c d e 13 B C A x° y° P In the figure above, BP = CP If x = 12 0˚, then y = a 30°...
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